| Type | Icon | Name | SP | Required | Description |
|---|---|---|---|---|---|
| B | 
|
Mystic Boost 1 | 60 | — | Disables foe's skills that "calculate damage using the lower of foe's Def or Res" and "calculate damage from staff like other weapons." Restores 2 HP after combat. |
|
Mystic Boost 2 | 120 | Mystic Boost 1 | Disables foe's skills that "calculate damage using the lower of foe's Def or Res" and "calculate damage from staff like other weapons." Restores 4 HP after combat. | |
|
Mystic Boost 3 | 240 | Mystic Boost 2 | Disables foe's skills that "calculate damage using the lower of foe's Def or Res" and "calculate damage from staff like other weapons." Restores 6 HP after combat. | |
|
Mystic Boost 4 | 300 | Mystic Boost 3 | Inflicts Atk-5 on foe during combat. Disables foe's skills that "calculate damage using the lower of foe's Def or Res" and "calculate damage from staff like other weapons." If foe uses staff, neutralizes effects that prevent unit's counterattacks during combat. Restores 10 HP to unit after combat. | |
| No restrictions. | |||||
Available as a Sacred Seal.
Notes[ | ]
- The healing effect is triggered regardless of whether Mystic Boost's user performs an attack during combat. If foe initiates combat and user cannot counterattack, Mystic Boost's healing effect will still trigger.
- Mystic Boost's user needs to survive the combat for the healing effect to trigger.
- Mystic Boost's healing effect stacks with skills such as
Fury 4, that deal out of combat damage to their owner after combat. - Mystic Boost's after combat healing will not work if the foe has a skill that prevents HP recovery such as Fatal Smoke 4 or Incurable+, or the user has been inflicted with Deep Wounds.
- Attacks that "calculate damage using the lower of foe's Def or Res" include attacks during combat and area-of-effect Specials.
Close Ward, 
Mystic Boost 4, 
Divine Naga, Naga, Spirit Forest Writ, Splashy Bucket, and Splashy Bucket+ will disable this effect.- Rare Talent, Aureola, Radiant Aureola, and Light and Dark II will disable this effect during combat, but not against area-of-effect Specials.
- Effects that are neutralized by Mystic Boost 4:
- Effects active on the foe that prevent the unit's counterattack such as Windsweep 3 and Dazzling Shift.
- Effects active on the user that prevent their counterattack, such as Firesweep S+ and Counterattacks disrupted.
- Effects active on the foe that prevent the unit's counterattack such as
- The stat decrease that can be applied by Mystic Boost 4 is considered a temporary debuff.
List of owners[ | ]
| Unit | Skill chain | |||
|---|---|---|---|---|
 | Mystic Boost 1 5  | Mystic Boost 2 5 | Mystic Boost 3 5 | Mystic Boost 4 5 |
 | Mystic Boost 1 5 | Mystic Boost 2 5 | Mystic Boost 3 5 | – |
 | Mystic Boost 1 5 | Mystic Boost 2 5 | Mystic Boost 3 5 | – |
 | Mystic Boost 1 4  | Mystic Boost 2 4 | Mystic Boost 3 5 | – |
 | Mystic Boost 1 5 | Mystic Boost 2 5 | Mystic Boost 3 5 | Mystic Boost 4 5 |
Availability[ | ]
Summoning events
| Start | End | Event | Skill |
|---|---|---|---|
| 2018-12-11 | 2018-12-18 | Hero Fest | Mystic Boost 3 |
| 2018-12-28 | 2019-01-08 | Legendary Heroes - Azura | Mystic Boost 3 |
| 2019-03-29 | 2019-04-05 | Mythic Heroes - Yune | Mystic Boost 3 |
| 2019-07-31 | 2019-08-07 | Mythic Heroes - Sothis | Mystic Boost 3 |
| 2019-09-30 | 2019-10-08 | Mythic Heroes - Thrasir | Mystic Boost 3 |
| 2019-12-25 | 2020-01-06 | Legendary Heroes - Celica | Mystic Boost 3 |
| 2020-04-30 | 2020-05-07 | Legendary Heroes - Edelgard | Mystic Boost 3 |
| 2020-05-20 | 2020-06-20 | Bridal Beloveds | Mystic Boost 3 |
| 2020-07-30 | 2020-08-06 | Mythic Heroes - Hel | Mystic Boost 3 |
| 2020-10-13 | 2020-10-27 | Focus: Double Special Heroes | Mystic Boost 3 |
| 2020-10-30 | 2020-11-06 | Legendary Heroes - Dimitri | Mystic Boost 3 |
| 2021-01-28 | 2021-02-05 | Mythic Heroes - Seiros | Mystic Boost 3 |
| 2021-02-02 | 2021-03-01 | Special Hero Summon (Year 4) | Mystic Boost 3 |
| 2021-04-28 | 2021-05-07 | Legendary Heroes - Sigurd | Mystic Boost 3 |
| 2021-05-25 | 2021-06-08 | Bridal Beloveds | Mystic Boost 3 |
| 2021-07-29 | 2021-08-05 | Mythic Heroes - Ullr | Mystic Boost 3 |
| 2022-02-12 | 2022-02-26 | Legendary & Mythic Hero Remix | Mystic Boost 3 |
| 2022-05-24 | 2022-06-03 | Bridal Beloveds | Mystic Boost 3 |
| 2022-07-14 | 2022-07-26 | Legendary & Mythic Hero Remix | Mystic Boost 3 |
| 2022-10-17 | 2022-11-08 | Special: Rearmed Robin & More | Mystic Boost 4 |
| 2022-11-14 | 2022-11-28 | Legendary & Mythic Hero Remix | Mystic Boost 3 |
| 2023-03-13 | 2023-03-27 | Legendary & Mythic Hero Remix 1 | Mystic Boost 3 |
| 2023-03-31 | 2023-04-14 | Legendary Heroes - Yuri | Mystic Boost 4 |
| 2023-05-15 | 2023-06-05 | Legendary & Mythic Hero Remix 2 | Mystic Boost 3 |
| 2023-05-27 | 2023-06-06 | Bridal Beloveds | Mystic Boost 3 |
| 2023-07-02 | 2023-07-10 | Revival: Rearmed Robin & More | Mystic Boost 4 |
| 2023-07-07 | 2023-08-07 | Summer Firsts | Mystic Boost 4 |
| 2023-08-12 | 2023-08-26 | Legendary & Mythic Hero Remix 1 | Mystic Boost 3 |
| 2023-08-12 | 2023-08-26 | Legendary & Mythic Hero Remix 2 | Mystic Boost 4 |
| 2023-09-04 | 2023-09-18 | Returning: Ascendant & Rearmed | Mystic Boost 4 |
| 2023-11-22 | 2023-12-21 | Focus: Double Special Heroes | Mystic Boost 4 |
| 2024-01-14 | 2024-01-28 | Legendary & Mythic Hero Remix 2 | Mystic Boost 3 |
| 2024-01-23 | 2024-02-06 | Returning: Ascendant & Rearmed | Mystic Boost 4 |
| 2024-01-30 | 2024-03-05 | Special Hero Summon (Year 7) | Mystic Boost 4 |
| 2024-02-25 | 2024-03-05 | 7th Anniversary Special Focus 3 | Mystic Boost 4 |
| 2024-03-07 | 2024-04-07 | A Place to Rest | Mystic Boost 3 |
| 2024-03-10 | 2024-03-18 | Focus: New Power | Mystic Boost 3 |
| 2024-06-03 | 2024-06-13 | Bridal Beloveds (4★SHSR) | Mystic Boost 3 |
| 2024-06-08 | 2024-06-12 | Revival: Rearmed Robin & More | Mystic Boost 4 |
| 2024-07-09 | 2024-07-16 | Summer Firsts | Mystic Boost 4 |
| 2024-08-12 | 2024-08-26 | Legendary & Mythic Hero Remix 2 | Mystic Boost 3 |
| 2024-09-23 | 2024-10-04 | Aided Heroes: ω Special Heroes | Mystic Boost 4 |
| 2024-09-26 | 2024-10-05 | Focus: Ymir and Eir's Battle | Mystic Boost 4 |
Distributed units
Combat Manuals
- This skill has not been available on any distributed Combat Manuals.
Seal acquired from[ | ]
Tempest Trials reward[ | ]
- Tempest Trials+: Burden of Gifts ( – ): 20,000 Score.
Sacred Seal Forge[ | ]
- Mystic Boost 1: Create for 20 Great Verdant Badge, 100 Verdant Badge, 40 Sacred Coin.
- Mystic Boost 2: Enhance for 60 Great Verdant Badge, 200 Verdant Badge, 50 Sacred Coin.
- Mystic Boost 3: Enhance for 400 Great Verdant Badge, 1000 Verdant Badge, 100 Sacred Coin.
In other languages[ | ]
| Language | Name |
|---|---|
| Japanese | 生命の護符 |
| German | Mystikschub |
| Spanish (Europe) | Cleptovitalidad |
| Spanish (Latin America) | Cleptovitalidad |
| French | Boost mystique |
| Italian | Impulso spirito |
| Traditional Chinese (Taiwan) | 生命護符 |
| Portuguese | Misticovital |