Aether Raids

Aether Raids Screen

Aether Raids is a game mode which debuted on 2018-11-09T07:00:00Z. The goal is to create, invade, and defend keeps.

Basics

The offense and the defense maps combine to create the battlefield.

Every battle consists of an offense map, and a defense map, which combine together to make the battlefield. The attacker controls the offense map while the defender controls the defense map. If the defender is defeated within seven turns, the attacker wins. If the attacker surrenders, it will count as defeat. Players gain or lose Lift based on these results, climbing to higher tiers and provided with more rewards if the player acquires enough Lift.

Aether

Aether Raids requires Aether to participate in battles. At the start of the season, a player's Aether starts with the capacity based on the level of their  Aether Amphorae. It is replenished by a fixed amount once a day, based on the level of the  Aether Fountain.

The amount of Aether it costs to start a battle is calculated as follows, capping out at 50 Aether maximum:

$\min \lbrace 9 + \lceil\mbox{Lift} / 200\rceil, 50 \rbrace$

The amount of Aether restored from destroying foe's resources during a battle is calculated as follows, capping out at 10 Aether maximum:

$\lfloor \min \lbrace 2 + \lfloor \mbox{Lift} / 1000 \rfloor, 10 \rbrace \times 0.5 \times \mbox{NumberOfResourcesDestroyed} \rfloor$.

Language	Name
English (US)	Aether
Japanese	エナジー
German	Äther
Spanish (Europe)	Éter
Spanish (Latin America)	Éter
French	Éther
Italian	Etere
Traditional Chinese (Taiwan)	能量
Portuguese	Éter

Lift

A player's Aether Raids tier is based on Lift. When a new season begins, every player between Tier 12 and Tier 21 will start the season with an amount of Lift based on their Tier. Lift is gained by performing a successful raid. A completely successful attack, where no units are lost on the attacking side, yields the Maximum Lift amount, which is displayed when forming a raiding party. During the season, other players can attack, and lift is lost if the defensive team fails. Lift can only be lost once per 20 hour period. The Defense Lift Loss is the largest amount of Lift that can be lost given the makeup of the defensive team. On the Edit Defensive Team menu, the Defense Lift Loss is shown.

Attacking

When entering a battle, the formula for potential Lift Gain for a raiding party is:

$100 + (\#\mbox{Mythics} \times \#\mbox{Blessed} \times 10) + \#\mbox{Merges} + \mbox{BonusUnit?}$

#Mythics	Number of Offense Mythic Heroes in the correct season, offense attributes being Light and Astra. (Ex. Eir: Merciful Death during Light Season)
#Blessed	Number of Heroes blessed with the same attribute as the Mythic Hero (Ex. Light Blessed Alfonse: Prince of Askr). In addition, Legendary Heroes in the correct season are also treated as being appropriately blessed (Ex. Fjorm: Princess of Ice during Water season)
#Merges	The number of merges on each Offense Mythic Hero in the correct season. Merges on blessed units do not count.
BonusUnit?	20 if there is one or more bonus units for the current season, 0 otherwise. Only one bonus unit is counted.

If a Mythic bonus unit is not deployed in the offense team, for every unit lost during a successful attack, the total Lift gained will be decreased by 20. If a Mythic bonus unit is used, the total Lift gained will not be decreased if one unit is lost, and will be decreased for every unit lost after the first one.

Below is an example calculation during the following Season with  Fjorm: Princess of Ice and  Eir: Merciful Death as a bonus unit:

Offense Team	Potential Lift Gain
	100+0+0+20 = 120 Lift
	100+(1*1*10)+0+0 = 110 Lift
	100+(2*3*10)+0+20 = 180 Lift

The highest possible lift gained is 210 Lift requiring 3 Mythic units, all fully merged, with 2 other blessed units, and one of those 5 units being a bonus unit.

Auto-Dispatch

Auto-Dispatch is an alternative to Battle where the a player's raiding team attacks a randomised enemy defense team through auto-battle without player input. It can be used up to 3 times per season. When an auto-dispatched is called, both the Battle and Auto-Dispatch option will be unavailable for next 20 hours, unless the player chooses to cancel the current auto-dispatch. Cancelling will forfeit all Aether used to auto-dispatch and will not increase a players lift. After 20 hours, when the raiding party has returned, a replay of the player's raiding party auto-battling against the randomly generated defense will be shown. Other differences between the Battle and Auto-dispatch options include:

• Players only receive 75% of the total possible Lift upon victory.
•  Aether Amphorae and  Aether Fountain buildings are not placed on the defense team, meaning the player can not recover any lift from Auto-Dispatch.
• The raiding party cannot use an  Escape Ladder (O) if the auto-dispatch was a failure.
• The raiding party cannot use Movement Assists, but the defense team can.
• The raiding party cannot receive and EXP, SP, or HM from battling.
• Winning an auto-dispatch will not count as a completion of any mission, including "AR: Attack Successfully" missions. However, it will count towards the Aether Raids daily reward.

Defending

When defending, the most lift that can be lost in a 20 hour period is:

$-100 + (\min \lbrace \#\mbox{Mythics}, 2 \rbrace \times \#\mbox{Blessed} \times 5) + \min \lbrace \#\mbox{Merges}, 20 \rbrace + BonusDefenseMythic?$

#Mythics	Number of Defense Mythic Heroes in the correct season, defense being Anima and Dark. (Ex. Duma: God of Strength during Anima Season)
#Blessed	Number of Heroes blessed with the same attribute as the Mythic Hero (Ex. Anima Blessed Alfonse: Prince of Askr). In addition, Legendary Heroes in the correct season are also treated as being appropriately blessed (Ex. Fjorm: Princess of Ice during Water season)
#Merges	The number of merges on each Defense Mythic Hero in the correct season. Merges on blessed units do no count.
BonusDefenseMythic	20 if a bonus defense Mythic is deployed, 0 otherwise.

For every hero defeated during a defense, the player loses 20 less lift. If the defense successfully defends against an attack, no lift is lost.

Example calculation during the following Season with  Yune: Chaos Goddess as a bonus unit and  Sothis: Girl on the Throne is not a bonus unit:

Defense Team	Max Lift Lost
	(-100)+0+0 = -100 Lift
	(-100)+(1*1*5)+0 = -95 Lift
	(-100)+(1*1*5)+0+20 = -75 Lift
	(-100)+(2*4*5)+0+20 = -40 Lift

The lowest possible Lift Lost for defeat is -20 Lift Loss requiring 2 defense Mythic units (at least 1 is a bonus unit), all fully merged, with 4 other blessed units.

After a players defense team has been fought, they are given "Lift Loss Immunity" for the next 20 hours. This means if another player fights the same defense team within 20 hours, even if the defense team has failed, no Lift will be loss. Also, if the Lift a player has is 4000 or lower no Lift will be loss.

Language	Name
English (US)	Lift
Japanese	レート
German	Niveau
Spanish (Europe)	Altitud
Spanish (Latin America)	Altitud
French	Altitude
Italian	Quota
Traditional Chinese (Taiwan)	評價
Portuguese	Altitude

Edit Aether Keep

Options found when when entering the Edit Aether Keep screen.

Terrain

The terrain of the Aether Keep can be changed. Some terrain requires Aether Stones to unlock.

Terrain name	Feature	Thumbnail	Map	Cost
Springwater	Ponds			—
Wintry	Forests
Abandoned Castle	Crumbling walls
Snowdust	Defensive terrain and trenches
Desert	Mountains
Spring Breeze	Walls
Leafy Canopy	Forests and trenches
Lost Castle	Forests and defensive terrain
Bright Grassland	Forests
Lava Floes	Lava
Dream Castle	Bridges			0
Nightmare Castle	Defensive terrain and forests			0
Hell Castle	Crumbling walls			0
Niðavellir Castle	Forests			0
Jötunheimr Castle	Walls			0
Opened-Up Castle	Defensive terrain
Closed-Off Castle	Crumbling walls			0

Auto/Copy

This menu provides players with three options:

• Auto Build/Improve: Automatically builds a setup that will provide the largest score reduction, followed by the highest Arena scoring units. Structures will also be upgraded using available divine dew.
• Auto Setup Only: Automatically builds a setup that will provide the largest score reduction, followed by the highest Arena scoring units. Structures will not be upgraded.
• Copy from Another Setup: Copies another setup's defense units as well as defensive and offensive structure placements to the current setup.

Choose Setup

Allows players to choose between two setups based on the current season.

Build/Improve

Spend Aether Stones or Heavenly Dew to improve offensive and defensive structures.

Place/Remove

Add or remove offensive and defensive structures to the current setup.

Defense Team

Add units to your defense team. By selecting "Lock Team", the defense team will be highlighted with a gold background, signifying that all units current levels, base stats, skills, Sacred Seals, and blessings will not be changed for Aether Raids defense battles. Even if the locked unit levels up, equips different skills, or is sent home, that unit will still exist unchanged in Aether Raids defense battles. However, the stats of the locked unit can change due to bonus allies or blessing effects. On the Edit Defensive Team menu, the Defense Lift Loss is shown.

Test Defenses

This option can be accessed through the Help & Extras Menu. This option allows the player to battle their own defense map with their own raiding party. Testing defense map's defenses will not consume Aether. No Aether will be consumed. Aetheric Lift will not be gained or lost.  Fortress (O) and Fortress (D) are treated as if they are the same level. After a season ends but before the next season begins, Test Defenses is treated as part of the next season. During a season, the Test Defenses Season can be changed.

Friend Mock Battle

This option can be accessed through the Help & Extras Menu. This option allows the player to battle friends defense map that have "Friend Mock Battle" set to On with their own raiding party. Testing defense map's defenses will not consume Aether. No Aether will be consumed. Aetheric Lift will not be gained or lost. Friend's Aetheric List will not be gained or lost, and no replay will be sent to them.  Fortress (O) and Fortress (D) are treated as if they are the same level. After a season ends but before the next season begins, Test Defenses is treated as part of the next season. During a season, the Test Defenses Season can be changed.

Bonuses

Fortress Level

For Fortress level above another player,

Bonus Allies

For a list of bonuses, see Aether Raids Bonus list.

When bonus allies are used in Aether Raids, they'll be granted HP+10 and Atk/Spd/Def/Res+4, and the amount of EXP and SP they gain will be doubled.

Bonus structures increase the  Fortress (O) or  Fortress (D) by one level.

Mythic/Legendary Hero Stat Bonus

See also: Legendary Hero Stat Boosts and Mythic Hero Stat Boosts

During the appropriate season, both defense and offense allies get a stat boost from legendary heroes if they are blessed with the correct element. Note that Mythic Heroes are not affected by this blessing and will not receive stat boosts.

During the appropriate season, both defense and offense allies get a stat boost from mythics heroes if they are blessed with the correct element. Note that Legendary Heroes in their correct season are treated as being blessed correctly and will receive stat boosts.

Example calculation during Water,Fire,Light,Dark Season. Assume Alfonse has been Earth blessed:

Team	Stat Bonuses
	Eir 1: no bonus Eir 2: no bonus Eir 3: no bonus Fjorm: +15 HP/+15 RES from all three Eirs
	Eir: no bonus Duma: no bonus Ike: no bonus Alfonse: +3 HP/+2 ATK from Ike

Boost

Before a raid starts, players have the option to double the Aether consumed in a fight to double the amount of Lift and Aether gained from the following battle.

Low Tier Bonus

See also: What's In Store for the 4.4.0 Update (Notification)

When a player in Tier 17 or below attacks, their Fortress (O) will enjoy a bonus in level of up to +4.

Tier	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17
Fortress (O) Tuning	+4	+4	+4	+4	+3	+3	+3	+3	+3	+2	+2	+2	+2	+2	+1	+1	+1

Defense Results

Explanation of elements on the Defense results screen.

Replays

Each season, players can watch how other players attacked their defense keep by tapping the Replay button for battle results listed on the Defense Results screen. This lets players watch the battle as it happened, as well as pause after every action. Each replay also notes how many foes was defeated, if the defense succeeded or failed, and how much lift was lost. All replays are erased once the season ends.

Lift Loss Control

After a players defense keep has been attacked by another player, whether the defense was a Success or a Failure, the defense keep becomes immune to lift loss for the next 20 hours. This is stated by the words "Lift Loss Control Active", followed by Lift being displayed as -0.

Rematches

Players can rematch those that have defeated their defenses one time. This acts as a regular battle and will consume the regular amount of Aether and has the same Lift gain. If the same opponent appears on the defenses list multiple times, they can only be challenged to a rematch once. For defense results that are a result of a rematch, the text "Your foe won the rematch!" will be displayed and the player listed cannot be rematched. The hero displayed to the left of the character is the hero on the first slot of the defense team when they are rematched, not that accounts first hero.

Language	Name
English (US)	Rematch
Japanese	リベンジ
German	Revanche
Spanish (Europe)	Revancha
Spanish (Latin America)	Revancha
French	Revanche
Italian	Rivincita
Traditional Chinese (Taiwan)	反攻
Portuguese	Revanche

Structures

Structures can be placed on maps. Fortresses and resources are permanent structures, and cannot be removed. Event Items are available to build for only a limited time.

Offensive structures

Structures raiding parties use for support. A maximum of 6 offensive stuctures (including the Fort which is fixed) can be brought when raiding.

Image	Structure	Max level	Cost(s)	Description
	Armor School (O)	13	50  150  250  350  450  750  1000  1500  2500  3500  5000  6000  7000	At start of turn, inflicts Atk/Spd/Def/Res-14 on armored foes within 3 columns centered on structure through their next actions. Note: Only one school can be placed at a time.
	Bolt Tower (O)	12	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000	At the start of turn 3, deals 56 damage to foes within 3 columns centered on structure.
	Bright Shrine (O)	12	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000	At start of turn, inflicts Atk/Spd-13 on foe on the enemy team with the highest Atk+Spd total through its next action.
	Catapult (O)	13	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000  14000	At start of turn, destroys defensive structures within the same column as this structure if their level ≤ this structure's level. Note: Fortress (D), traps, resources, and ornaments cannot be destroyed.
	Cavalry School (O)	13	50  150  250  350  450  750  1000  1500  2500  3500  5000  6000  7000	At start of turn, inflicts Atk/Spd/Def/Res-14 on cavalry foes within 3 columns centered on structure through their next actions. Note: Only one school can be placed at a time.
	Dark Shrine (O)	12	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000	At start of turn, inflicts Def/Res-13 on foe on the enemy team with the highest Def+Res total through its next action.
	Duo's Indulgence	5	100  300  500  700  900	The first Duo or Harmonized Skill used between turn 1 and turn 7 can be used a second time. (Max of two uses. Only one use per turn.)
	Escape Ladder (O)	7	100  300  500  700  900  1500  2000	A lost battle's Aether cost will be returned. May be used up to 7 times per season. Note: Cannot be destroyed. Triggers only if a battle comes to its end and results in a loss.
	Flier School (O)	13	50  150  250  350  450  750  1000  1500  2500  3500  5000  6000  7000	At start of turn, inflicts Atk/Spd/Def/Res-14 on flying foes within 3 columns centered on structure through their next actions. Note: Only one school can be placed at a time.
	Fortress (O)	5	0  500  1000  1500  2000	If structure's level > opponent's Fortress (D) level, grants Atk/Spd/Def/Res+X to all allies. (X = difference in level × 4). Note: Cannot be removed or destroyed.
	Healing Tower (O)	13	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000  14000	At start of turn, restores 58 HP to allies within 3 rows and 5 columns centered on structure.
	Infantry School (O)	13	50  150  250  350  450  750  1000  1500  2500  3500  5000  6000  7000	At start of turn, inflicts Atk/Spd/Def/Res-14 on infantry foes within 3 columns centered on structure through their next actions. Note: Only one school can be placed at a time.
	Panic Manor (O)	13	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000  14000	At start of turn, if any foes are within 3 columns centered on structure and their HP ≤ 88, converts bonuses on those foes into penalties through their next actions.
	Safety Fence (O)	1	500	Until turn 1, after skill activation at start of defensive turn, if raiding party is outside the defensive team's range or is within 2 rows and 7 columns centered on a structure, defensive turn ends immediately.
	Tactics Room (O)	13	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000  14000	At start of turn, if any foes are within the same column as structure and their HP ≤ 88 and they use bow, dagger, magic, or staff, restricts those foes' movement to 1 space through their next actions.

Defensive structures

These structures are useful when defending a keep. They support the team defending the keep. A maximum of 6 defensive stuctures (including the Fort which is fixed) can be placed at the same time.

Image	Structure	Max level	Cost(s)	Description
	Armor School (D)	13	50  150  250  350  450  750  1000  1500  2500  3500  5000  6000  7000	At start of turn, inflicts Atk/Spd/Def/Res-14 on armored foes within 3 columns centered on structure through their next actions. Note: Only one school can be placed at a time.
	Bolt Tower (D)	12	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000	At the start of turn 3, deals 56 damage to foes within 7 rows and 3 columns centered on structure.
	Bright Shrine (D)	12	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000	At start of turn, inflicts Atk/Spd-13 on foe on the enemy team with the highest Atk+Spd total through its next action.
	Catapult (D)	13	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000  14000	At start of turn, destroys offensive structures within the same column as this structure if their level ≤ this structure's level. Note: Fortress (O) cannot be destroyed.
	Cavalry School (D)	13	50  150  250  350  450  750  1000  1500  2500  3500  5000  6000  7000	At start of turn, inflicts Atk/Spd/Def/Res-14 on cavalry foes within 3 columns centered on structure through their next actions. Note: Only one school can be placed at a time.
	Dark Shrine (D)	12	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000	At start of turn, inflicts Def/Res-13 on foe on the enemy team with the highest Def+Res total through its next action.
	Duo's Hindrance	5	100  300  500  700  900	If a Duo or Harmonized Hero is on the defensive team, foe cannot use Duo or Harmonized Skills between turn 1 and turn 7.
	Flier School (D)	13	50  150  250  350  450  750  1000  1500  2500  3500  5000  6000  7000	At start of turn, inflicts Atk/Spd/Def/Res-14 on flying foes within 3 columns centered on structure through their next actions. Note: Only one school can be placed at a time.
	Fortress (D)	5	0  500  1000  1500  2000	If structure's level > opponent's Fortress (O) level, grants Atk/Spd/Def/Res+X to all allies. (X = difference in level × 4). Note: Cannot be removed or destroyed.
	Healing Tower (D)	13	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000  14000	At start of turn, restores 58 HP to allies within 5 rows and 5 columns centered on structure.
	Infantry School (D)	13	50  150  250  350  450  750  1000  1500  2500  3500  5000  6000  7000	At start of turn, inflicts Atk/Spd/Def/Res-14 on infantry foes within 3 columns centered on structure through their next actions. Note: Only one school can be placed at a time.
	Panic Manor (D)	13	100  300  500  700  900  1500  2000  3000  5000  7000  10000  12000  14000	At start of turn, if any foes are within 7 rows and 3 columns centered on structure and their HP ≤ 88, converts bonuses on those foes into penalties through their next actions.
	Tactics Room (D)	13	14000  12000  10000  7000  5000  3000  2000  1500  900  700  500  300  100	At start of turn, if any foes are within 7 rows and 3 columns centered on structure and their HP ≤ 88 and they use bow, dagger, magic, or staff, restricts those foes' movement to 1 space through their next actions.

Traps

Traps are triggered when foes end movement on one. However, when triggered, some traps can affect allies as well. A maximum of 2 Traps can be placed at the same time.

Image	Structure	Max level	Cost(s)	Description
	Bolt Trap	5	700  500  300  0  100	If foe ends movement on this structure's space, deals 50 damage to target and units within 3 spaces. (Cancels foe's attack, Assist skill, etc.)
	Heavy Trap	5	0  100  300  500  700	If foe ends movement on this structure's space, restricts movement of target and units within 2 spaces with HP ≤ 60 to 1 space through their next actions. (Cancels foe's attack, Assist skills, etc.)
	Hex Trap	6	0  100  300  500  700  1500	If foe ends movement on this structure's space and foe's HP ≤ 65, cancels foe's attack, Assist skill, etc. and ends that foe's action. (Magic traps cannot be disarmed by Disarm Trap skills.)

Decoy Traps

Decoy Traps look like traps, but do nothing when foes end movement on one. A maximum of 2 Decoy Traps can be placed at the same time. No results

Resources

Resources store Aether and replenish it. These structures may grant Aether to the raiding party when destroyed, but only if they win. Both structures must be placed on the map.

Image	Structure	Max level	Cost(s)	Description
	Aether Amphorae	4	500  300  100  0	Stores up to 250 Aether. If destroyed in an attack, they restore Aether to the raiding party (if they win). Note: Cannot be removed. Can be destroyed.
	Aether Fountain	3	300  100  0	Restores 70 Aether to the Aether Keep each day. If destroyed in an attack, it restores Aether to the raiding party (if they win). Note: Cannot be removed. Can be destroyed.

Ornaments

Decorative structures with no combat function. Can not be destroyed by a Catapult. A maximum of 4 Ornaments/R&R Structures can be placed at the same time.

Image	Structure	Max level	Cost(s)	Description
	Anniversary Cake	None	500	A massive cake baked to celebrate the fourth anniversary. It's an event item.
	Anniversary Cake	None	500	A massive cake baked to celebrate the fifth anniversary. It's an event item.
	Anniversary Cake	None	500	A massive cake baked to celebrate the seventh anniversary. It's an event item.
	Anniversary Arch	None	500	An arch built to welcome well-wishers during the second anniversary. It's an event item.
	Anniversary Cake	None	500	A massive cake baked to celebrate the second anniversary. It's an event item.
	Anniversary Cakes	1	500	A lavish tea set put together to celebrate the sixth anniversary. It's an event item.
	Anniversary Treat	None	500	A gigantic cupcake whipped up to celebrate the third anniversary. It's an event item.
	Ash Statue	None	500	A statue of Askr's retainer in the form of a divine beast. It radiates a certain charm felt by all who lay eyes on it.
	Beach and Feh	None	500	A statue of Feh enjoying a summer vacation at the beach, feet outstretched and relaxing. It's an event item.
	Black Eagle Flag	None	500	Flag for the class led by Edelgard. It's an event item.
	Blue Lion Flag	None	500	Flag for the class led by Dimitri. It's an event item.
	Bronze Throne	None	0	A throne suitable only for those who have achieved a rank from 1 to 10000 in Aether Raids.
	Elm Statue	None	500	A statue of Embla's retainer in the form of a divine beast. It evokes a tingling unease, its wings spread wide.
	Feh Kagami Mochi	None	500	Not the real Feh! It's a decoration that brings good luck for the New Year. It's an event item.
	Feh Sand Statue	None	500	It seems Feh has reviewed this sand sculpture herself—and she was satisfied with the result! It's an event item.
	Feh Statue	None	500	An objet d'art produced under the direct supervision of its model. It's an event item.
	Fireplace	None	500	If it's cold where you are, this item should help you feel a little bit warmer. It's an event item.
	Flag of Embla	None	500	The flag of Veronica's homeland, the Emblian Empire.
	Flower Bed	None	500	An arrangement of flowers in vivid colors. It's an event item.
	Foreboding Lizard	None	500	This statue creates an atmosphere of menace, but the candles lighten the mood. It's an event item.
	Golden Deer Flag	None	500	Flag for the class led by Claude. It's an event item.
	Golden Throne	None	0	A throne suitable only for those who have achieved a rank from 1 to 3000 in Aether Raids. From the second time onward, the number of times this feat has been achieved will be inscribed upon it.
	Gullinbursti Figure	None	500	A commemorative figure built to put dvergr craftsmanship on display, its design meant to aid in combating larger foes. It's an event item.
	Haunted Coffin	None	500	Even though it appears empty, a sinister aura emanates from within. It's an event item.
	Heart Garland	None	500	A decoration that symbolizes overflowing love. It's an event item.
	Icon of Light	None	500	A statue of a goddess from Vanaheimr, the realm of light. It radiates a hopeful aura. It's an event item.
	Iron Fence	None	500	Used to separate what's inside from what's outside. It's an event item.
	Lending Library	None	500	All of the Heroes who cherish knowledge gathered up this collection of books. It's an event item.
	Light-Realm Flora	None	500	Plant life from Vanaheimr, the realm of light. Its brilliance is soothing. It's an event item.
	Mirror of Niðavellir	None	500	A mirror of hidden power that hangs above the throne of Niðavellir—or rather, an imitation modeled after the real thing. It's an event item.
	Pumpkin Lanterns	None	500	Expertly carved pumpkins. They're brothers from the same patch. The eldest is the base, and the youngest is on top. It's an event item.
	Red Wood Lantern	None	500	A lantern made of wood in the style of those seen across Hoshido. The red color is said to protect from catastrophes. It's an event item.
	Sea-Foam Feh	None	500	A statue of Feh atop a seashell that radiates a summery aura. It depicts Feh rising from the sea and exudes a sense of love and beauty.
	Seiðjárn Gearwork	None	500	Structure common to Niðavellir, its mechanism driven by magic. It's an event item.
	Serpent's Curse	None	500	A statue of a snake wrapped around a golden crystal. The ethereal light is unsettling. It's an event item.
	Sight of Bonding	None	500	A floral decoration commemorating the eternal connection of friendship. It's an event item.
	Silver Throne	None	0	A throne suitable only for those who have achieved a rank from 1 to 6000 in Aether Raids.
	Snow Family	None	500	It seems they're brother and sister. It's an event item.
	Sound of Bonding	None	500	If two people who share a wish ring it together, their wish will come true. It's an event item.
	Streetlamp	None	500	A lamp in an elegant, classic design. It's an event item.
	Summerning Stone	None	500	A faux summoning stone that radiates with a summery, watermelon aura—but it can't summon any Heroes. It's an event item.
	Tree-Hand Statue	None	500	A statue of a denizen of Yggdrasill, the realm of the World-Tree. You feel its healing power wash over you when nearby. It's an event item.
	Wanted Poster	None	500	A wanted poster from Yggdrasill, realm of the World-Tree. Who put it up, and why? It's an event item.
	Witch's Cauldron	None	500	A cauldron bubbling away, full of unidentifiable ingredients. Looks disgusting, but the smell is somehow alluring. It's an event item.
	Word of Bonding	None	500	For Heroes who like to deepen their bonds over tea or at gatherings. It's an event item.
	World-Tree Gate	None	500	Gate of Yggdrasill, realm of the World-Tree. The silence that surrounds the mystical tree calms the heart. It's an event item.
	Year's Entry Decor	None	500	A decoration said to be placed in the entryway of Hoshidan homes as a way of celebrating the new year. It's an event item.
	Year's Festive Gate	None	500	A red gate in the style said to be seen across Hoshido, decorated with New Year's trappings to celebrate coming change. It's an event item.

R&R Structures

Resort structures. Can also be used as decor. Can not be destroyed by a Catapult. A maximum of 4 Ornaments/R&R Structures can be placed at the same time.

Image	Structure	Max level	Cost(s)	Description
	Accessory Shop	None	300	An R&R structure for your Aether Resort.
	Armory	None	0	An R&R structure for your Aether Resort.
	Concert Hall	None	300	An R&R structure for your Aether Resort.
	Dining Hall	None	120	An R&R structure for your Aether Resort.
	Field	None	0	An R&R structure for your Aether Resort.
	Hot Spring	None	300	An R&R structure for your Aether Resort.
	Inn	None	300	An R&R structure for your Aether Resort.

Rewards

Dailies

Playing at least once a day during a season also provides rewards. Unlike Arena, multiple daily rewards can not be collected in a single day.

Day	Reward
1	3 3
2	45
3	20
4	45
5	3 3

Rank

Rank	Rewards
	Dragonflowers	Heroic Grails	Bronze Thrones	Silver Thrones	Golden Thrones	Divine Code: Part
1 ~ 1,000	44	35	1	1	1	50
1,001 ~ 3,000	42	30	1	1	1	40
3,000 ~ 6,000	40	25	1	1	0	36
6,000 ~ 10,000	38	22	1	0	0	32
10,001 ~ 20,000	36	17	0	0	0	28
20,001 ~ 30,000	32	15	0	0	0	24
30,001 ~ 50,000	28	14	0	0	0	20
50,001 ~ 70,000	26	13	0	0	0	18
70,001 ~ 100,000	24	12	0	0	0	16
100,001 ~ 300,000	22	11	0	0	0	14
300,001+	20	10	0	0	0	12

AR Tier

Reaching Tier 11 or higher will allow a 5th ally to be added to a raiding party and a defensive team.

Reaching Tier 19 or higher will allow a 6th ally to be added to a defensive team.

Both of these upgrades cost 300 Aether Stones.

Class	Tier	Lift to enter Tier	Lift on Reset	Rewards
				Aether Stones	Heroic Grails	Dragonflowers
Tropos	1	0 ~ 399	0	10	10	20
	2	400 ~ 799	400	20	10	20
	3	800 ~ 1,199	800	30	10	20
	4	1,200 ~ 1,599	1,200	40	10	20
	5	1,600 ~ 1,999	1,600	50	10	20
Stratos	6	2,000 ~ 2,399	2,000	60	10	24
	7	2,400 ~ 2,799	2,400	70	12	24
	8	2,800 ~ 3,199	2,800	80	14	24
	9	3,200 ~ 3,599	3,200	90	16	24
	10	3,600 ~ 3,999	3,600	100	18	24
Mesos	11	4,000 ~ 4,399	4,000	110	20	28
	12	4,400 ~ 4,799	4,400	120	22	28
	13	4,800 ~ 5,199	4,800	130	24	28
	14	5,200 ~ 5,599	5,200	140	26	28
	15	5,600 ~ 5,999	5,600	150	28	28
Thermos	16	6,000 ~ 6,499	6,000	160	30	32
	17	6,500 ~ 7,199	6,500	170	32	32
	18	7,200 ~ 8,199	7,200	180	34	32
	19	8,200 ~ 9,399	8,200	190	36	32
	20	9,400 ~ 10,999	9,400	200	38	32
Exos	21	11,000 ~ 11,399	11,000	210	40	34
	22	11,400 ~ 11,799	11,000	215	41	35
	23	11,800 ~ 12,199	11,000	220	42	36
	24	12,200 ~ 12,599	11,000	225	43	37
	25	12,600 ~ 12,999	11,000	230	44	38
	26	13,000 ~ 13,399	11,000	235	45	39
	27	13,400 ~ 13,799	18,000	240	46	40
	28	13,800 ~ 15,999	18,000	250	50	45
	29	16,000 ~ 16,400	11,800	250	50	45
	30	16,400 ~ 17,999	11,800	250	50	45
Ásgarðr
	31	18,000 ~ 18,399	11,800	250	51	46
	32	18,400 ~ 18,799	11,800	250	52	47
	33	18,800 ~ 19,199	11,800	250	53	48
	34	19,200 ~ 19,599	11,800	250	54	49
	35	19,600 ~ 19,999	11,800	250	55	50
	36	20,000 ~ 20,399	11,800	250	56	51
	37	20,400 ~ 20,799	11,800	250	57	52
	38	20,800 ~ 20,999	18,000	250	58	53
	39	21,000 ~	18,000	250	60	55

Defense

Starting with the season that began on 2019-07-09T07:00:00Z, defense rewards have been added. Defense rewards are granted based on sum of the three failed defenses with the highest Lift lost, stated as "Defense Lift". Note that "Defense Lift" is different from the total amount of Lift Loss per season, which can be up to -640.

Tier	Lift loss	Reward
		Dragonflowers
20 ~ 38	-80 ~ 0	26
	-160 ~ -81	24
	-180 ~ -161	22
	-200 ~ -181	20
	-220 ~ -201	18
	-240 ~ -221	16
	-260 ~ -141	14
	-280 ~ -261	12
	-300 ~ -281	10
1 ~ 19	-100 ~ 0	9
	-180 ~ 101	8
	-200 ~ -181	7
	-220 ~ -201	6
	-240 ~ -221	5
	-260 ~ -241	4
	-280 ~ -261	3
	-300 ~ -281	2

History

Time	Version	Changes
2018-11-08T03:30:00Z	2.10.0	Aether Raids, a completely new game mode, was announced in the Feh Channel.
2018-11-09T07:00:00Z	2.11.0	The first Aether Raids season.
2018-11-14T03:00:00Z		Some issues were acknowledged.
2018-15-11T04:00:00Z		Rank rewards have been adjusted. Rank 1 ~ 3000: , 30 Rank 3001 ~ 6000: , 25 Rank 6001 ~ 10000: , 22
2018-11-16T01:00:00Z	2.11.1	The Aether issue and replay issue have been fixed.
2018-11-20T07:00:00Z		10 Orbs have been distributed to all players.
2018-12-11T02:55:00Z	3.0.0	Eir: Merciful Death, the first Mythic Hero has been introduced. Blessing mechanic has been introduced, allow players to gain more Lift on offense and loss less Lift on defense. Escape Ladder (O) has been added. Infantry, Armored, Cavalry and Flier School (O/D) can be upgraded to level 4.
2018-12-14T11:00:00Z		Rematch issue with Escape Ladder (O) was acknowledged.
2018-12-17T07:00:00Z		From this season onwards, a blessing has been added to daily rewards.
2018-12-20T03:30:00Z	3.0.1	The rematch issue has been fixed.
2018-12-21T07:00:00Z		5 Orbs have been distributed to all players.
2019-01-10T05:20:00Z	3.1.0	Legendary Heroes can receive a Mythic Effect when deployed with a Mythic Hero in Aether Raids during a season that matches both of their blessing types. Aether Fountain can be upgraded to level 3. Catapult (O) and Catapult (D) can be upgraded to level 4.
2019-01-15T07:00:00Z		First Aether Raids season that start on Tuesday at 07:00 a.m. UTC.
2019-01-30T07:00:00Z		Duma: God of Strength has been released.
2019-02-07T03:00:00Z	3.2.0	Tiers 22 through 27 was added. Aether costs have been adjusted. Spring Breeze and Lava Floes map have been adjusted. Panic Manor (O), Panic Manor (D) and Aether Amphorae can be upgraded to level 4.
2019-02-12T07:00:00Z		Dragonflowers have been added to Tier and Rank rewards.
2019-03-05T07:00:00Z		One extra blessing has been added to daily rewards.
2019-03-07T01:40:00Z	3.3.0	The Lift lost reduction by Dark and Anima Mythic Heroes have been updated: Mythic Heroes (Max: 2) × the number of Heroes with the blessing conferred × 5. Healing Tower (O) and Healing Tower (D) can be upgraded to level 4.
2019-03-29T07:00:00Z		Yune: Chaos Goddess has been released.
2019-04-09T01:00:00Z	3.4.0	Raiding parties have been expanded. Fortress (O) has been improved for Tiers 1–12. Tactics Room (O) and Tactics Room (D) can be upgraded to level 4.
2019-05-09T01:30:00Z	3.5.0	Friend Mock Battle has been added. Bright Shrine and Dark Shrine (O/D) have been added. Bolt Tower (O) and Bolt Tower (D) can be upgraded to level 4.
2019-05-09T08:20:00Z		The rematch issue were acknowledged. In all rematches, the defense team is treated as Tier 1 with level 1 Fortress (D) and a defensive team made up of 4 Heroes.
2019-05-10T07:00:00Z		The rematch issue investigation result was announced. All rematches were disabled.
2019-05-14T02:30:00Z	3.5.1	The rematch issue have been fixed.
2019-05-14T07:00:00Z		10 Orbs and 100 Heroic Grails have been distributed to all players.
2019-05-30T07:00:00Z		Naga: Dragon Divinity has been released.
2019-06-10T01:30:00Z	3.6.0	Defense map slots have been added. A map copy feature have been added. Test Defenses can be played with next season's blessings and bonus allies. Infantry, Armor, Cavalry, and Flier Schools (O/D) can be upgraded to level 5. Abandoned Castle, Snowdust, Spring Breeze map have been adjusted.
2019-07-02T07:00:00Z		To prepare for the upcoming update, this season has been scheduled to end one day earlier than usual.
2019-07-08T01:30:00Z	3.7.0	Defense rewards have been added. Time, Lift loss control status and indentification number have been added to the player's defense history. Catapult (O) and Catapult (D) can be upgraded to level 5.
2019-07-31T07:00:00Z		Sothis: Girl on the Throne has been released.
2019-08-06T03:00:00Z	3.8.0	Panic Manor (O), Panic Manor (D) can be upgraded to level 5.
2019-09-05T03:00:00Z	3.9.0	2x Aether can be used. Healing Tower (O) and Healing Tower (D) can be upgraded to level 5. Escape Ladder (O) can be upgraded to level 4.
2019-09-30T07:00:00Z		Thrasir: Omnicidal Witch has been released.
2019-10-08T08:30:00Z	3.10.0	Duo's Indulgence and Duo's Hindrance have been added. Tactics Room (O) and Tactics Room (D) can be upgraded to level 5.
2019-11-06T08:00:00Z	3.11.0	Bolt Tower (O) and Bolt Tower (D) can be upgraded to level 5. The defensive structure limit has been increased to 6.
2019-11-28T07:00:00Z		Altina: Dawn's Trueblade has been released.
2019-12-05T07:00:00Z	4.0.0	Peony: Sweet Dream has been released. Bright Shrine (O) and Bright Shrine (D) can be upgraded to level 5.
2020-01-08T03:00:00Z	4.1.0	Dark Shrine (O) and Dark Shrine (D) can be upgraded to level 5.
2020-01-30T07:00:00Z		Líf: Lethal Swordsman has been released.
2020-02-06T03:15:00Z	4.2.0	The offensive structure limit has been increased to 6.
2020-03-03T07:00:00Z		Divine Codes: Part 1 have been added to Rank rewards.
2020-03-05T07:00:00Z	4.3.0	Infantry School (O/D), Armor School (O/D), Cavalry School (O/D), Flier School (O/D) can be upgraded to level 7.
2020-03-31T07:00:00Z		Bramimond: The Enigma has been released.
2020-04-07T03:00:00Z	4.4.0	Catapult (O) and Catapult (D) can be upgraded to level 7.
2020-05-07T01:00:00Z	4.5.0	Panic Manor (O) and Panic Manor (D) can be upgraded to level 7.
2020-05-29T07:00:00Z		Mila: Goddess of Love has been released.
2020-06-05T03:00:00Z	4.6.0	Mirabilis: Daydream has been released. Healing Tower (O) and Healing Tower (D) can be upgraded to level 7.
2020-07-06T04:00:00Z	4.7.0	The Auto-Dispatch feature has been added. Tactics Room (O) and Tactics Room (D) can be upgraded to level 7.
2020-07-30T07:00:00Z		Hel: Death Sovereign has been released.
2020-08-06T02:00:00Z	4.8.0	Bolt Tower (O) and Bolt Tower (D) can be upgraded to level 7. Escape Ladder (O) can be upgraded to level 5.
2020-09-07T01:30:00Z	4.9.0	Bright Shrine (O) and Bright Shrine (D) can be upgraded to level 7.
2020-09-30T07:00:00Z		Plumeria: Lewd Dream has been released.
2020-10-07T02:00:00Z	4.10.0	When the defender's Fortress structure is of a higher level than the attacker's Fortress structure, the difference between their levels will be calculated as 0. Additions from bonus-structure tuning and low-tier tuning will be applied after this calculation. Dark Shrine (O) and Dark Shrine (D) can be upgraded to level 7.
2020-11-05T03:00:00Z	4.11.0	Infantry School (O/D), Armor School (O/D), Cavalry School (O/D), Flier School (O/D) can be upgraded to level 8.
2020-11-27T07:00:00Z		Freyja: Lady of Nightmare and  Triandra: Nightmare has been released.
2020-12-08T01:00:00Z	5.0.0	Base Lift gain and loss has been incresed from 80 to 100. The bonus Hero list will include two in-season Mythic Heroes, one for offense and one for defense. If bonus Mythic Hero is used on offense, losing one unit will not reduce Lift gain. If bonus Mythic Hero is used on defense, base Lift loss will be 80 instead of 100. Tier 28 has been added. New Mythic Effect has been introduced, which increase the number of slots in both offensive and defensive teams if a Hero who has the new Mythic Effect are deployed.  Reginn: Bearing Hope, who has the new Mythic Effect, has been released. Catapult (O) and Catapult (D) can be upgraded to level 8.
2021-01-07T03:00:00Z	5.1.0	Vault of Heaven (Tier 29-38) has been added. The number of defense maps has increased from 5 to 15. Panic Manor (O) and Panic Manor (D) can be upgraded to level 8.
2021-01-28T07:00:00Z		Seiros: Saint of Legend has been released.
2021-02-04T03:00:00Z	5.2.0	Duo's Indulgence (O) and Duo's Hindrance (D) can be upgraded to level 5.
2021-03-04T03:00:00Z	5.3.0	Tier 39 has been added. Vault of Heaven has been updated with new class name (Ásgarðr) and new background. An Auto-Create function has been added to the Edit Raiding Party and Defense Team menus. Healing Tower (O) and Healing Tower (D) can be upgraded to level 8.
2022-02-06T03:00:00Z	5.3.0	Maps have been added.

Story

English・Japanese

Annaアンナ	If I wasn't looking at it with my own eyes, I wouldn't believe it... And even now, I'm not sure I do.		…こうして目のあたりにしても、 まだ信じられないわね。 ここが…
It's just as it seems, Commander... This is the Aether Keep left behind by Líf, first king of Askr.		はい。 アスク王国初代王リーヴが 遺したとされる【飛空城】…		Alfonseアルフォンス
Sharenaシャロン	It's just as mother used to tell us when we were little. A castle that flies as freely as a bird... Seeing it is like seeing a dream!		自由にお空を飛ぶ城ですよね！ わたし、小さい頃にお母様から聞きました。 本当にあるなんて夢みたいです！
You're right, Sharena. It's just as mother said. I was certain those were mere fairy tales... Never did I imagine we would find it lying dormant all the way out here.		そうだね。 僕もてっきりお伽話だと思っていたよ。 まさかこんな辺境に眠っていたとは…		Alfonseアルフォンス
Annaアンナ	I can't help but wonder about the source who gave us the information that led us here... Just who could it have been?		それにしても、私たちでさえ知らなかった 【飛空城】の情報を送りつけてくるなんて… この謎の情報提供者…何者なのかしら？
Hmm...		…………		Alfonseアルフォンス
Sharenaシャロン	Alfonse! Commander Anna! Over here—you can see the whole thing!		お兄様ー、アンナ隊長ー！ 来てください！ こっちから全体が見渡せますよー！
Sharenaシャロン	It's been untouched for so long, it's practically in ruins. What do you think it was used for?		長い間ほっとかれてたから、 ずいぶん荒れ果ててますね～。 いったい何に使われてたんでしょう？
Battling in the heavens.		『天上との戦い』…		Alfonseアルフォンス
Sharenaシャロン	Huh?		え…？
A fire appears to have consumed much of the castle's library, but a trace of literature remained. It seems that the ancient Askrans used to travel the skies and do battle with Aether Keeps in other realms. The ultimate goal was to soar ever higher into the sky. It was a battle for power over the heavens.		城内の文献は、 燃やされた形跡があって、 これしか残っていないけれど… 古代の アスク王国は、 この城で数々の異界へ渡り、 異界の【飛空城】と戦ったらしい… その最終目的は 、遥かなる天の高み… 『天上』と称される勢力との 戦争だったことが伺える…		Alfonseアルフォンス
Sharenaシャロン	Amazing! They waged battle so high up?		天上… 空の上の誰かと 戦ってたんですか？
That's right. It's also said they employed special weaponry, both offensive as well as defensive.		うん。その戦争のために、 【飛空城】にはさまざまな 攻城兵器、防城兵器があったそうだよ。		Alfonseアルフォンス
Sharenaシャロン	Weapons on a castle? That sounds incredible! Do you think there are any still lying around?		攻城兵器！？ なんだかすごそうです！ 今もここにあるんでしょうか？
Good question, Sharena. I'm sure any we can salvage will come in handy later. Let's give this place a proper look right away.		今後の戦力になるかもしれないわね。 さっそくこの【飛空城】を 徹底的に調べてみましょう！		Annaアンナ

Story
Previous: Eirika: Graceful Resolve ←		Next: Paralogue 27-1: Friends →

Gallery

• 

  Tropos

• 

  Stratos

• 

  Mesos

• 

  Thermos

• 

  Exos

• 

  Ásgarðr

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• 
• 
• 
• 
• 
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  The Aether Keep as seen in the Lift results screen.

In other languages

Language	Name
Japanese	飛空城
German	Ätherraubzüge
Spanish (Europe)	Asaltos etéreos
Spanish (Latin America)	Asaltos etéreos
French	Raid céleste
Italian	Blitz eterei
Traditional Chinese (Taiwan)	飛空城
Portuguese	Investidas etéreas

See also

• Aether Raids Is Here! (Notification)
• Learn with Sharena!

Trivia

• During the tutorial battle of the English version, the enemy is named "Otherworldly Order", which would be impossible for a regular player to have as a nickname because of the 12 character limit.

• Prior to Version 3.2, the amount of Aether it costs to start a battle was $9 + \lceil \mbox{Lift} / 100\rceil$., the amount of Aether restored from destroying foe's resources during a battle is calculated by $\lfloor (10 + \lfloor \mbox{Lift} / 100 \rfloor) \times 0.1 \times \mbox{NumberOfResourcesDestroyed} \rfloor$.