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Ahead of the Tempest Trials+ event starting on , Askr's Kin, Pt. 4, there's a summoning focus event for the Tempest Trials+ bonus allies.
This time, Eitr: Hand of Nothing, Ranulf: Friend of Nations, and Lethe: Gallia's Valkyrie from among the bonus allies are available as part of a 5★ summoning focus.
In Tempest Trials+, bonus allies will receive increased stats. But that's not all—they will also receive double the EXP and SP, so you can train them up faster.
Tap More for additional information about this event.
• Heroes with different illustrations and epithets are treated as different Heroes even if they are the same character. As such, you cannot use them with Merge Allies.
• To view summoning details, you can tap on List of Heroes at the bottom of the related notification message or tap on Appearance Rates in the Summon menu.
Learning Skills
• You can help Heroes learn skills by going to Allies, then Ally Growth, and then Learn Skills.
• Some skills can only be learned after raising a Hero's ★ rating.
• Heroes might have already learned some skills based on their ★ rating when they joined your team.
Rearmed Hero 
Unquestioning servant of the ruler of
nothingness, she lacks the confidence
to express her own will.
Skills learnable at 5★:
Arcane Nihility
Mt: 14 Range: 1
Accelerates Special trigger (cooldown count-1).
At start of combat, if unit's HP ≥ 25%, grants
Atk/Spd/Def/Res+5 and Atk/Spd/Def/Res+X
to unit, inflicts Atk/Spd/Def/Res-X on foe
(X = current bonus on each of foe's stats;
calculates each stat bonus and penalty
independently), and deals damage = 15% of
unit's Spd during combat (including when
dealing damage with a Special triggered
before combat), and also, if unit's Spd > foe's
Spd, neutralizes effects that guarantee foe's
follow-up attacks and effects that prevent
unit's follow-up attacks during combat. At
start of turn, if unit is adjacent to only beast
or dragon allies or is not adjacent to any ally,
unit transforms (otherwise, unit reverts). If unit
transforms, grants Atk+2 to unit, inflicts
Atk/Def-X on foe during combat (X = number
of spaces from start position to end position
of whoever initiated combat + 3; max 6), and
also, if X ≥ 5, reduces damage from foe's first
attack by 30% during combat.
Cannot use: 
Luna
Cooldown: 3
Treats foe’s Def/Res as if reduced by 50% during
combat.
Cannot use: 
Power of Nihility
If number of allies adjacent to unit ≤ 1, grants
Atk/Spd/Def/Res+9 to unit and grants Special
cooldown charge +1 to unit per attack during
combat (only highest value applied; does not
stack), and also, if unit deals damage to foe
using a Special during combat, restores X% of
unit's max HP to unit (X = unit's max Special
cooldown count value × 20, + 10; max 100;
triggers even if 0 damage is dealt).
This skill can only be equipped by its original unit.
Beast Sense 4
Removes the condition to transform. Inflicts
Spd/Def-4 on foe during combat. If a skill
compares unit's Spd to a foe's or ally's Spd,
treats unit's Spd as if granted +7. If unit's
Spd > foe's Spd, reduces damage from attacks
during combat and from area-of-effect Specials
(excluding Røkkr area-of-effect Specials) by
X% (X = difference between Spd stats × 4;
max 40).
Cannot use: 
Alarm Atk/Spd
At start of turn, if number of allies adjacent
to unit ≤ 2, grants Atk/Spd+6 and【Canto (１)】
to unit for 1 turn. If number of allies adjacent
to unit ≤ 1, grants Atk/Spd+3 to unit
during combat.
【Canto (１)】
After an attack, Assist skill, or structure
destruction, unit can move １ space(s).
(Unit moves according to movement type. Once
per turn. Cannot attack or assist. Only highest
value applied. Does not stack. After moving,
if a skill that grants another action would be
triggered (like with Galeforce), Canto will
trigger after the granted action. Unit's base
movement has no effect on movement granted.
Cannot warp (using skills like Wings of Mercy)
a distance greater than unit would be able to
move with normal Canto movement.)
Cannot use:
"I am...Eitr. I serve the nothingness and the one who rules it... Wh-where am I now?"
A cat warrior from Gallia, the home of the beast
tribe of laguz. Though young, his king trusts him
deeply. Considered the right hand of the future
king. Appears in Fire Emblem: Radiant Dawn.
Skills learnable at 5★:
Covert Cat Fang
Mt: 14 Range: 1
Grants Def+3. If unit is within 2 spaces of an
ally, grants Atk/Def+3 to unit and allies within
2 spaces of unit during combat. At start of turn,
if unit is adjacent to only beast or dragon allies
or if unit is not adjacent to any ally, unit
transforms (otherwise, unit reverts). If unit
transforms, grants Atk+2, and if unit initiates
combat, inflicts Atk/Def-4 on foe during
combat and foe cannot make a follow-up
attack.
This skill can only be equipped by its original unit.
Rally Atk/Def+
Range: 1
Grants Atk/Def+6 to target ally for 1 turn.
Cannot use:
Chill Atk 3
At start of turn, inflicts Atk-7 on foe on the
enemy team with the highest Atk through its
next action.
Ward Beasts
Grants Def/Res+4 to beast allies within 2
spaces during combat.
Cannot use:
"There's a beorc in my world who's a little bit...different. Nice guy. Wonder if there's anybody like that here."
A cat warrior from Gallia, the home of the beast
tribe of laguz. Once had a distrust of all beorc,
but that's slowly changing. Appears in Fire
Emblem: Radiant Dawn.
Skills learnable at 5★:
Brazen Cat Fang
Mt: 14 Range: 1
Grants Spd+3. If unit is not adjacent to an ally,
grants Atk/Spd+6 during combat. At start of
turn, if unit is adjacent to only beast or dragon
allies or if unit is not adjacent to any ally, unit
transforms (otherwise, unit reverts). If unit
transforms, grants Atk+2, and if unit initiates
combat, inflicts Atk/Def-4 on foe during combat
and foe cannot make a follow-up attack.
This skill can only be equipped by its original unit.
Moonbow
Cooldown: 2
Treats foe’s Def/Res as if reduced by 30% during
combat.
Cannot use:
Spd/Def Solo 3
If unit is not adjacent to an ally, grants
Spd/Def+6 during combat.
Hone Beasts
At start of turn, grants Atk/Spd+6 to adjacent
beast allies for 1 turn.
Cannot use:
"Try as hard as you like, but your tricks will be no use to you when you face the laguz."
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