| Name | Cooldown | Description | SP | Required |
|---|---|---|---|---|
| Boulder | 3 | Boosts Special damage by 50% of unit's Def when Special triggers. If unit's or foe's Special is ready, or unit's or foe's Special triggered before or during this combat, and also, if unit's Def ≥ foe's Def-4 during combat, reduces damage from foe's next attack by 40% (once per combat; excluding area-of-effect Specials). |
500 | Bonfire |
Cannot use:                        
| ||||
Effects[ | ]
| Effects | Targets | Conditions |
|---|---|---|
| Combat effects | ||
 Boosts damage by X%X = 50% of  Unit's Def | Unit | Special triggers |
 Reduces damage by 40%from  Foe's next attack | ( Unit or Foe's Special is ready or triggered before or during combat) & Unit's Def ≥ Foe's Def-4 | |
Notes[ | ]
- The Special damage boosting effect of Boulder can be reduced by damage-reduction effects such as
Gust, Atk/Spd Excel, and Dodge.
- A foe equipped with
Embla's Ward, 
Múspellflame, 
Niðavellir Axiom, or Gold Perfection will neutralize all sources of damage during combat except the minimum 1 damage from Umbra Burst weapons. - For more information, see Damage calculation.
- A foe equipped with
- The damage-reduction effect is calculated after offensive Specials and damage boosting effects such as Arcane Lúin and Dominance.
- If a skill such as Miracle or Everliving Domain can trigger, the damage-reduction effect will not trigger and the user will still survive with only 1 HP.
- "Reduces damage by X%" effects stack multiplicatively, unlike interactions related to the weapon-triangle, such as Triangle Adept and the weapon-triangle advantage boost.
- Special "reduces damage by X%" effects cannot be neutralized or reduced by effects such as Share Spoils or Halves non-Special damage reduction.
- For more information, see Damage calculation.
- If a skill such as
List of owners[ | ]
| Unit | Skill chain | ||
|---|---|---|---|
 | Glowing Ember 5  | Bonfire 5 | Boulder 5 |
Availability[ | ]
Summoning events
| Start | End | Event | Skill |
|---|---|---|---|
| 2024-11-06 | 2024-12-06 | Family Ninja Class | Boulder |
Distributed units
- This skill is not available on any distributed units.
Combat Manuals
- This skill has not been available on any distributed Combat Manuals.
In other languages[ | ]
| Language | Name |
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| Japanese | ???
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| German | ???
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| Spanish (Europe) | ???
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| Spanish (Latin America) | ???
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| French | ???
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| Italian | ???
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| Traditional Chinese (Taiwan) | ???
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| Portuguese | ???
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