| Type | Icon | Name | SP | Required | Description |
|---|---|---|---|---|---|
| C | 
|
Fortify Def 1 | 50 | — | At start of turn, grants Def+2 to adjacent allies for 1 turn. |
|
Fortify Def 2 | 100 | Fortify Def 1 | At start of turn, grants Def+3 to adjacent allies for 1 turn. | |
|
Fortify Def 3 | 200 | Fortify Def 2 | At start of turn, grants Def+4 to adjacent allies for 1 turn. | |
|
Fortify Def 4 | 300 | Fortify Def 3 | At start of turn, grants Def+7 to adjacent allies for 1 turn. | |
| No restrictions. | |||||
Available as a Sacred Seal.
Effects[ | ]
| Effects | Targets | Conditions |
|---|---|---|
 Fortify Def 3 | ||
| Status effects | ||
 Def+4 | Adjacent Allies | At start of turn |
 Fortify Def 4 | ||
| Status effects | ||
| Def+7 | Adjacent Allies | At start of turn |
Notes[ | ]
- The stat increase that can be applied by Fortify Def is considered a
Bonus.
List of owners[ | ]
| Unit | Skill chain | |||
|---|---|---|---|---|
 | Fortify Def 1 3  | Fortify Def 2 4  | Fortify Def 3 5  | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Dragons 5 | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Def 3 5 | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Def 3 5 | Joint Hone Def 5 |
 | Fortify Def 1 3 | Fortify Def 2 3 | Fortify Def 3 4 | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Def 3 5 | Fortify Def 4 5 |
 | Fortify Def 1 3 | Fortify Def 2 3 | Fortify Dragons 4 | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Armor 5 | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Dragons 5 | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Def 3 5 | Joint Hone Def 5 |
 | Fortify Def 1 3 | Fortify Def 2 4 | Fortify Def 3 5 | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Def 3 5 | Joint Hone Def 5 |
 | Fortify Def 1 4 | Fortify Def 2 4 | Fortify Def 3 5 | – |
 | Fortify Def 1 3 | Fortify Def 2 3 | Fortify Armor 4 | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Fliers 5 | – |
 | Fortify Def 1 5 | Fortify Def 2 5 | Fortify Def 3 5 | – |
* Alfonse: Prince of Askr, Sharena: Princess of Askr, Anna: Commander, and Forma units cannot be used for skill inheritance or turned into combat manuals.
** Rearmed and Attuned Heroes cannot be used for normal skill inheritance or turned into combat manuals after using their Arcane/Elite Inheritance unless their Arcane/Elite Inheritance is restored via merges.
Alfonse: Prince of Askr, 
Sharena: Princess of Askr, 
Anna: Commander, and 
Forma units cannot be used for skill inheritance or turned into combat manuals.**
Rearmed and 
Attuned Heroes cannot be used for normal skill inheritance or turned into combat manuals after using their Arcane/Elite Inheritance unless their Arcane/Elite Inheritance is restored via merges.Availability[ | ]
Summoning events
| Start | End | Event | Skill |
|---|---|---|---|
| 2017-03-14 | 2017-03-30 | New Heroes: Blazing Shadows | Fortify Def 2 |
| 2017-03-30 | 2017-04-14 | Spring Festival | Fortify Def 3 |
| 2017-04-03 | 2017-04-11 | Focus: Wyvern Riders | Fortify Def 3 |
| 2017-04-20 | 2017-04-24 | Focus: Battling Zephiel | Fortify Def 3 |
| 2017-05-19 | 2017-05-26 | Focus: Battling Lloyd | Fortify Def 2 |
| 2017-06-23 | 2017-07-03 | Focus: The War of the Clerics, Block A | Fortify Def 3 |
| 2017-08-10 | 2017-08-18 | Hero Fest | Fortify Def 2 |
| 2017-09-05 | 2017-09-15 | Focus: Tempest Trials | Fortify Def 2 |
| 2017-09-20 | 2017-09-27 | Focus: Ninian & Hawkeye's Battle | Fortify Def 2 |
| 2017-10-05 | 2017-10-15 | Focus: The Blood of Dragons, Block A | Fortify Def 2 |
| 2017-11-16 | 2017-11-24 | Focus: Takumi & Hinoka's Battle | Fortify Def 3 |
| 2017-11-28 | 2017-12-04 | Legendary - Fjorm: Princess of Ice | Fortify Def 3 |
| 2017-12-18 | 2018-01-01 | Winter's Envoy | Fortify Def 2 |
| 2017-12-22 | 2018-01-09 | Focus: Tempest Trials | Fortify Def 3 |
| 2018-01-13 | 2018-01-23 | Focus: Tempest Trials | Fortify Def 3 |
| 2018-01-18 | 2018-02-07 | Focus: 4★ & 5★Heroes | Fortify Def 3 |
| 2018-02-11 | 2018-02-28 | Focus: Tempest Trials | Fortify Def 2 |
| 2018-02-28 | 2018-03-05 | Legendary Heroes - Ephraim | Fortify Def 3 |
| 2018-03-12 | 2018-03-29 | Focus: Tempest Trials | Fortify Def 3 |
| 2018-03-31 | 2018-04-10 | Spring Festival | Fortify Def 3 |
| 2018-05-01 | 2018-05-08 | Legendary Heroes - Lyn | Fortify Def 3 |
| 2018-05-22 | 2018-06-04 | Focus: Tempest Trials | Fortify Def 2 |
| 2018-06-28 | 2018-07-05 | Legendary Heroes - Hector | Fortify Def 3 |
| 2018-07-31 | 2018-08-07 | Legendary Heroes - Lucina | Fortify Def 2 |
| 2018-09-16 | 2018-09-25 | Focus: New Power | Fortify Def 3 |
| 2018-10-31 | 2018-11-07 | Legendary Heroes - Eirika | Fortify Def 3 |
| 2018-11-09 | 2018-11-21 | New Heroes: Adrift | Fortify Def 2 |
| 2018-12-18 | 2019-01-18 | Winter's Envoy | Fortify Def 2 |
| 2019-01-28 | 2019-02-06 | Focus: Voting Gauntlet Mothers | Fortify Def 3 |
| 2019-02-02 | 2019-02-09 | Special Hero Summon (Year 1) | Fortify Def 3 |
| 2019-02-12 | 2019-02-13 | Focus: Takumi and Hinoka's Battle | Fortify Def 3 |
| 2019-02-12 | 2019-02-18 | Focus: Cherche & Virion's Battle | Fortify Def 3 |
| 2019-02-27 | 2019-03-06 | Legendary Heroes - Roy | Fortify Def 3 |
| 2019-03-22 | 2019-04-22 | Spring Festival | Fortify Def 3 |
| 2019-03-24 | 2019-04-05 | Focus: Heroes with Bond Skills | Fortify Def 2 |
| 2019-05-21 | 2019-06-21 | Bridal Belonging | Fortify Def 2 |
| 2019-06-28 | 2019-07-05 | Legendary Heroes - Eliwood | Fortify Def 3 |
| 2019-08-18 | 2019-08-25 | Focus: Weekly Revival 11 | Fortify Def 2 |
| 2019-09-30 | 2019-10-08 | Mythic Heroes - Thrasir | Fortify Def 3 |
| 2019-10-15 | 2019-10-22 | Focus: New Power | Fortify Def 3 |
| 2019-10-21 | 2019-11-07 | New Heroes: Zofia's Call | Fortify Def 3 |
| 2019-12-10 | 2019-12-25 | Focus: Double Special Heroes | Fortify Def 2 |
| 2019-12-21 | 2020-01-02 | Focus: Heroes with Rally Skills | Fortify Def 2 |
| 2019-12-24 | 2020-01-24 | Winter's Envoy | Fortify Def 2 |
| 2020-01-05 | 2020-01-12 | Focus: Weekly Revival 11 | Fortify Def 2 |
| 2020-01-30 | 2020-02-06 | Mythic Heroes - Líf | Fortify Def 3 |
| 2020-02-02 | 2020-03-01 | Special Hero Summon (Year 3) | Fortify Def 2 |
| 2020-02-05 | 2020-02-07 | Focus: Ninian & Hawkeye's Battle | Fortify Def 2 |
| 2020-02-07 | 2020-02-08 | Focus: Takumi & Hinoka's Battle | Fortify Def 3 |
| 2020-03-30 | 2020-04-13 | Spring Festival | Fortify Def 3 |
| 2020-04-08 | 2020-05-01 | Free 5★ Hero: Fire Emblem Leads | Fortify Def 2 |
| 2020-04-22 | 2020-04-29 | Focus: Ryoma and Sakura's Battle | Fortify Def 3 |
| 2020-05-24 | 2020-05-31 | Focus: Weekly Revival 11 | Fortify Def 2 |
| 2020-05-27 | 2020-06-10 | Bridal Belonging | Fortify Def 2 |
| 2020-05-29 | 2020-06-06 | Mythic Heroes - Mila | Fortify Def 3 |
| 2020-06-01 | 2020-06-09 | Focus: Heroes with Bond Skills | Fortify Def 3 |
| 2020-06-07 | 2020-06-08 | Focus: Heroes with Bond Skills | Fortify Def 2 |
| 2020-06-16 | 2020-06-17 | Focus: Heroes with Rally Skills | Fortify Def 2 |
| 2020-06-17 | 2020-06-24 | Focus: Stahl & Sully | Fortify Def 3 |
| 2020-06-18 | 2020-07-18 | Summer Passing | Fortify Def 4 |
| 2020-06-30 | 2020-07-07 | Legendary Heroes - Seliph | Fortify Def 3 |
| 2020-07-03 | 2020-07-10 | Focus: Heroes with Draconic Aura | Fortify Def 2 |
| 2020-07-10 | 2020-07-16 | Focus: New Power | Fortify Def 2 |
| 2020-08-05 | 2020-08-06 | Focus: Cherche & Virion's Battle | Fortify Def 3 |
| 2020-08-11 | 2020-08-19 | Focus: Forsyth & Python's Battle | Fortify Def 3 |
| 2020-09-08 | 2020-10-08 | To Stay Dreaming | Fortify Def 3 |
| 2020-09-30 | 2020-10-07 | Mythic Heroes - Plumeria | Fortify Def 3 |
| 2020-10-06 | 2020-10-19 | Focus: Tempest Trials | Fortify Def 2 |
| 2020-11-03 | 2020-11-11 | Focus: Heroes with Bonfire | Fortify Def 3 |
| 2020-11-16 | 2020-11-17 | Focus: Heroes with Bond Skills | Fortify Def 3 |
| 2020-12-27 | 2021-01-03 | Focus: Weekly Revival 22 | Fortify Def 2 |
| 2020-12-31 | 2021-01-14 | Winter's Envoy | Fortify Def 2 |
| 2021-01-05 | 2021-01-12 | Focus: Heroes with Draconic Aura | Fortify Def 2 |
| 2021-02-02 | 2021-03-01 | Special Hero Summon (Year 4) | Fortify Def 4 |
| 2021-02-20 | 2021-03-06 | Focus: Double Special Heroes | Fortify Def 4 |
| 2021-02-26 | 2021-03-05 | Legendary Heroes - Claude | Fortify Def 3 |
| 2021-04-10 | 2021-04-24 | Spring Festival | Fortify Def 3 |
| 2021-04-13 | 2021-04-27 | Focus: Double Special Heroes | Fortify Def 3 |
| 2021-05-13 | 2021-05-20 | Legendary Hero Remix | Fortify Def 3 |
| 2021-06-04 | 2021-06-18 | Bridal Belonging | Fortify Def 2 |
| 2021-06-14 | 2021-06-15 | Focus: Heroes with Draconic Aura | Fortify Def 2 |
| 2021-06-17 | 2021-06-18 | Focus: Heroes with Bonfire | Fortify Def 3 |
| 2021-06-23 | 2021-07-07 | Summer Passing | Fortify Def 4 |
| 2021-07-29 | 2021-08-05 | Mythic Heroes - Ullr | Fortify Def 3 |
| 2021-08-01 | 2021-08-08 | Focus: Weekly Revival 22 | Fortify Def 2 |
| 2021-09-14 | 2021-09-28 | To Stay Dreaming | Fortify Def 3 |
| 2021-09-23 | 2021-10-07 | Legendary Hero Remix | Fortify Def 3 |
| 2021-10-03 | 2021-10-10 | Focus: Weekly Revival 36 | Fortify Def 2 |
| 2021-10-19 | 2021-10-20 | Focus: Heroes with Bond Skills | Fortify Def 3 |
| 2021-12-23 | 2022-01-06 | Winter's Envoy | Fortify Def 2 |
| 2022-01-11 | 2022-01-20 | Focus: New Power | Fortify Def 2 |
| 2022-01-28 | 2022-02-08 | Mythic Heroes - Elimine | Fortify Def 3 |
| 2022-02-17 | 2022-02-24 | Focus: Heroes w/Joint Hone Skills | Fortify Def 3 |
| 2022-04-04 | 2022-04-14 | Spring Festival (4★SHSR) | Fortify Def 3 |
| 2022-04-30 | 2022-05-10 | Focus: Chivalric Struggle 1 | Fortify Def 3 |
| 2022-05-14 | 2022-05-28 | Legendary & Mythic Hero Remix | Fortify Def 3 |
| 2022-05-15 | 2022-05-22 | Focus: Weekly Revival 22 | Fortify Def 2 |
| 2022-05-25 | 2022-06-04 | Bridal Belonging | Fortify Def 2 |
| 2022-06-20 | 2022-06-30 | Summer Passing | Fortify Def 4 |
| 2022-08-31 | 2022-09-14 | Legendary Heroes - Deirdre | Fortify Def 3 |
| 2022-09-04 | 2022-09-11 | Focus: Weekly Revival 36 | Fortify Def 2 |
| 2022-09-19 | 2022-09-29 | To Stay Dreaming | Fortify Def 3 |
| 2022-09-25 | 2022-10-02 | Focus: Weekly Revival 58 | Fortify Def 3 |
| 2022-10-09 | 2022-10-16 | Focus: Weekly Revival 22 | Fortify Def 2 |
| 2022-11-06 | 2022-11-18 | Focus: Tempest Trials | Fortify Def 3 |
| 2022-11-14 | 2022-11-28 | Legendary & Mythic Hero Remix | Fortify Def 3 |
| 2022-12-30 | 2023-01-09 | Winter's Envoy (4★SHSR) | Fortify Def 2 |
| 2023-02-06 | 2023-02-18 | Focus: Tempest Trials | Fortify Def 3 |
| 2023-02-28 | 2023-03-14 | Legendary Heroes - Robin | Fortify Def 3 |
| 2023-03-09 | 2023-03-21 | Focus: New Power | Fortify Def 3 |
| 2023-03-13 | 2023-03-27 | Legendary & Mythic Hero Remix 2 | Fortify Def 3 |
| 2023-04-06 | 2023-04-16 | Spring Festival (4★SHSR) | Fortify Def 3 |
| 2023-05-21 | 2023-05-28 | Focus: Weekly Revival 22 | Fortify Def 2 |
| 2023-05-28 | 2023-06-04 | Focus: Weekly Revival 58 | Fortify Def 3 |
| 2023-06-02 | 2023-06-12 | Bridal Belonging (4★SHSR) | Fortify Def 2 |
| 2023-06-28 | 2023-07-08 | Summer Passing | Fortify Def 4 |
| 2023-06-29 | 2023-07-08 | Focus: Tiki & Ninian's Battle | Fortify Def 2 |
| 2023-08-12 | 2023-08-26 | Legendary & Mythic Hero Remix 1 | Fortify Def 3 |
| 2023-08-27 | 2023-09-03 | Focus: Weekly Revival 36 | Fortify Def 2 |
| 2023-09-20 | 2023-09-30 | To Stay Dreaming | Fortify Def 3 |
| 2023-10-23 | 2023-11-13 | Focus: Hall of Forms | Fortify Def 3 |
| 2023-12-28 | 2024-01-07 | Winter's Envoy (4★SHSR) | Fortify Def 2 |
| 2024-01-14 | 2024-01-28 | Legendary & Mythic Hero Remix 2 | Fortify Def 3 |
| 2024-01-28 | 2024-02-04 | Focus: Weekly Revival 58 | Fortify Def 3 |
| 2024-02-11 | 2024-02-25 | Legendary & Mythic Hero Remix 2 | Fortify Def 3 |
| 2024-04-03 | 2024-04-13 | Spring Festival (4★SHSR) | Fortify Def 3 |
| 2024-06-04 | 2024-06-14 | Bridal Belonging (4★SHSR) | Fortify Def 2 |
| 2024-06-09 | 2024-06-16 | Focus: Weekly Revival 22 | Fortify Def 2 |
| 2024-06-27 | 2024-07-07 | Summer Passing (4★SHSR) | Fortify Def 4 |
| 2024-07-08 | 2024-07-23 | Focus: Hall of Forms Revival | Fortify Def 4 |
| 2024-08-06 | 2024-08-17 | Focus: Tempest Trials | Fortify Def 3 |
| 2024-08-18 | 2024-08-25 | Focus: Weekly Revival 58 | Fortify Def 3 |
| 2024-08-22 | 2024-09-12 | Focus: Hall of Forms | Fortify Def 3 |
| 2024-09-09 | 2024-10-04 | Legendary & Mythic Hero Remix 1 | Fortify Def 3 |
| 2024-09-15 | 2024-09-22 | Focus: Weekly Revival 36 | Fortify Def 2 |
| 2024-09-25 | 2024-10-05 | To Stay Dreaming (4★SHSR) | Fortify Def 3 |
Distributed units
- Heroes' Path - Rank 5 completion (×1)
- Kana: Dragon Spawn (×1)
- Kana: Dragon Spawn (×2)
- Prologue 2: Proof of Power (×1)
- Use Heroic Grails (×20)
- Grand Hero Battles quest (October 2018) (×1)
- Grand Hero Party quest (August 2019) (×1)
- Grand Hero Party quest (February 2022) (×1)
- Resplendent Hero (×1)
- Resplendent Hero (×1)
- Three Heroes quest (April 2020) (×1)
- Three Heroes quest (March 2018) (×1)
- Three Heroes quest (May 2023) (×1)
- Three Heroes quest (October 2017) (×1)
Combat Manuals
| Start | End | Hero | Currency |
|---|---|---|---|
| 2020-03-05T05:00:00Z | Tanith: Forthright Heart | Divine Code: Part 1 | |
| 2021-03-04T03:00:00Z | Joshua: Tropical Gambler | Divine Code: Part 2 | |
| 2021-11-04T03:00:00Z | 2021-12-28T06:59:59Z | Corrin: Dream Princess | Divine Code: Ephemera 11 |
| 2021-11-04T03:00:00Z | 2021-12-28T06:59:59Z | Sakura: Loving Priestess | Divine Code: Ephemera 11 |
| 2022-09-06T03:00:00Z | 2022-10-28T06:59:59Z | Quan: Lightfoot Prince | Divine Code: Ephemera 9 |
Seal acquired from[ | ]
Tempest Trials reward[ | ]
- Tempest Trials: Moment of Fate ( – ): 20,000 Score.
Sacred Seal Forge[ | ]
- Fortify Def 1: Create for 20 Great Verdant Badge, 100 Verdant Badge, 20 Sacred Coin.
- Fortify Def 2: Enhance for 60 Great Verdant Badge, 200 Verdant Badge, 50 Sacred Coin.
- Fortify Def 3: Enhance for 400 Great Verdant Badge, 1000 Verdant Badge, 100 Sacred Coin.
In other languages[ | ]
| Language | Name |
|---|---|
| Japanese | 守備の鼓舞 |
| German | Ver. stärken |
| Spanish (Europe) | Impulso Def |
| Spanish (Latin America) | Impulso Def. |
| French | Impulsion Déf |
| Italian | Fortifica Dif |
| Traditional Chinese (Taiwan) | 防守鼓舞 |
| Portuguese | Def. intensa |