Toughness Break: 20 Consumes SAM's HP equal to 40% of SAM's maximum HP and regenerates a fixed amount of Energy equal to 60% of SAM's Max Energy. Inflicts Fire damage equals to 200% of SAM's ATK to a single target enemy. If the current HP is not sufficient, then SAM's HP is reduced to 1 when using this skill. Enables this unit's next Action to be Advanced by 25%. Fyrefly Type-IV: Deathstar Overload Toughness Break: 30 Recovers HP by an amount equal to 25% of this unit's maximum HP. Applies Fire Weakness to a single target enemy, lasting for 2 turn(s). Inflicts Fire damage equal to (0.2 x Break Effect + 100% ) of SAM's ATK to this target. At the same time, deal Fire damage equal to (0.10 x Break Effect + 50.0% ) of SAM's ATK to adjacent targets. The Break Effect taken into the calculation is capped at 360%.

Firefly moves, skills and special abilities
Firefly: 5-Star, Fire, The Destruction. Faction: Stellaron Hunter — ???.
Skills
2Toughness Break: 20 Consumes SAM's HP equal to 40% of SAM's maximum HP and regenerates a fixed amount of Energy equal to 60% of SAM's Max Energy. Inflicts Fire damage equals to 200% of SAM's ATK to a single target enemy. If the current HP is not sufficient, then SAM's HP is reduced to 1 when using this skill. Enables this unit's next Action to be Advanced by 25%. Fyrefly Type-IV: Deathstar Overload Toughness Break: 30 Recovers HP by an amount equal to 25% of this unit's maximum HP. Applies Fire Weakness to one designated enemy and its adjacent targets, lasting for 2 turn(s). Inflicts Fire damage equal to (0.2 x Break Effect + 100% ) of SAM's ATK to this target. At the same time, deal Fire damage equal to (0.10 x Break Effect + 50.0% ) of SAM's ATK to adjacent targets. The Break Effect taken into the calculation is capped at 360%.
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Ultimates
2Upon entering the Complete Combustion state, Advances SAM's Action by 100% and gains Enhanced Basic ATK and Enhanced Skill. While in Complete Combustion, increases SPD by 60 , and when using the Enhance Basic ATK or Enhance Skill, increases this unit's Weakness Break efficiency by 50% and Break damage received by enemy targets by 20.0% , lasting until the current attack ends. A countdown timer for the Complete Combustion state appears on the Action Order. When the countdown turn starts, SAM exits Complete Combustion state. The countdown has a fixed SPD of 70.
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Upon entering the Complete Combustion state, Advances SAM's Action by 100% and gains Enhanced Basic ATK and Enhanced Skill. While in Complete Combustion, increases SPD by 60 , and when using the Enhance Basic ATK or Enhance Skill, increases this unit's Weakness Break efficiency by 50% and Break damage received by enemy targets by 20.0% , lasting until the current attack ends. A countdown timer for the Complete Combustion state appears on the Action Order. When the countdown turn starts, SAM exits Complete Combustion state. The countdown has a fixed SPD of 70.
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Talent
2The lower the HP, the less damage received. When HP is 20% or lower, the damage Reduction reaches its maximum effect, reducing up to 40% . During the Complete Combustion, the damage Reduction remains at its maximum effect, and the Effect RES increases by 30% . If Energy is lowered than 50% when the battle starts, regenerates Energy to 50%. Once Energy is regenerated to its maximum, dispels all debuffs on this unit.
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The lower the HP, the less damage received. When HP is 20% or lower, the damage Reduction reaches its maximum effect, reducing up to 40% . During the Complete Combustion, the damage Reduction remains at its maximum effect, and the Effect RES increases by 30% . If Energy is lowered than 50% when the battle starts, regenerates Energy to 50%. Once Energy is regenerated to its maximum, dispels all debuffs on this unit.
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Bonus Trace
6For every 10 of SAM's ATK that exceeds 1,800, increases SAM's Break Effect by 0.8%.
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When SAM is in Complete Combustion with a Break Effect that is equal to or greater than 200%/360%, attacking a Weakness-Broken enemy target will convert the Toughness Reduction of this attack into 1 instance of 30%/50% Super Break damage.
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During the Complete Combustion, attacking enemies that has no Fire Weakness can also reduce their Toughness, with the effect being equivalent to 55% of the original Toughness Reduction from abilites.
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For every 10 of SAM's ATK that exceeds 1,800, increases SAM's Break Effect by 0.8%.
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When SAM is in Complete Combustion with a Break Effect that is equal to or greater than 150%/300%, attacking a Weakness-Broken enemy target will convert the Toughness Reduction of this attack into 1 instance of 100%/150% Super Break damage.
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While in the Complete Combustion state, SAM's Break Effect increases by 25%. When using Enhanced Basic ATK or Enhanced Skill to inflict Weakness Break on a target, the Complete Combustion countdown is delayed by 10%. This effect can trigger a maximum of 3 time(s) during each Complete Combustion state.
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Stat Trace
20SPD increases by 3
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Break Effect increases by 10.7%
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Effect RES increases by 8.0%
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Break Effect increases by 5.3%
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Break Effect increases by 8.0%
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Effect RES increases by 6.0%
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Break Effect increases by 8.0%
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Effect RES increases by 4.0%
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Break Effect increases by 5.3%
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SPD increases by 2
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SPD increases by 3
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Break Effect increases by 10.7%
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Effect RES increases by 8.0%
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Break Effect increases by 5.3%
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Break Effect increases by 8.0%
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Effect RES increases by 6.0%
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Break Effect increases by 8.0%
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Effect RES increases by 4.0%
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Break Effect increases by 5.3%
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SPD increases by 2
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Technique
2Toughness Break: 20 Leaps into the air and moves about freely for 5 seconds, which can ended early by launching a plunging attack. When the duration ends, plunges and immediately attacks all enemies within a set area. At the start of each wave, applies a Fire Weakness to all enemies, lasting for 2 turn(s). Then, inflicts Fire damage equal to 200% of SAM's ATK to all enemies.
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Toughness Break: 20 Leaps into the air and moves about freely for 5 seconds, which can ended early by launching a plunging attack. When the duration ends, plunges and immediately attacks all enemies within a set area. At the start of each wave, applies a Fire Weakness to all enemies, lasting for 2 turn(s). Then, inflicts Fire damage equal to 200% of SAM's ATK to all enemies.
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Basic Atk
2Toughness Break: 10 Inflicts Fire damage equal to 100% of SAM's ATK to a single target enemy. Fyrefly Type-IV: Pyrogenic Decimation Toughness Break: 15 Recovers HP by an amount equal to 20% of this unit's maximum HP. Inflicts Fire damage equal to 200% of SAM's ATK to a single target enemy.
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Toughness Break: 10 Inflicts Fire damage equal to 100% of SAM's ATK to a single target enemy. Fyrefly Type-IV: Pyrogenic Decimation Toughness Break: 15 Recovers HP by an amount equal to 20% of this unit's maximum HP. Inflicts Fire damage equal to 200% of SAM's ATK to a single target enemy.
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Eidolon
6When using the Enhanced Skill, ignore 15% of the target's DEF. And Enhanced skill does not consume Skill Points.
Requirements / unlock: Eidolon 1
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Pre-Enhanced: When using the Enhanced Basic ATK or Enhanced Skill in Complete Combustion Skill state to defeat an enemy target or cause them to be Weakness Broken, SAM immediately gains 1 extra turn. This effect can trigger again after 1 turn(s). Enhanced: While in Complete Combustion, using the Enhanced Basic ATK or the Enhanced Skill to defeat an enemy target or to Break their Weakness allows SAM to immediately gain 1 extra turn. This effect can only trigger 1 time per turn, and the trigger count resets at the start of SAM's turn.
Requirements / unlock: Eidolon 2
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Skill Lv. +2, up to a maximum of Lv. 15 Basic ATK Lv. +1, up to a maximum of Lv. 10
Requirements / unlock: Eidolon 3
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While in Complete Combustion, increases SAM's Effect RES by 50%.
Requirements / unlock: Eidolon 4
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Ultimate Lv. +2, up to a maximum of Lv. 15 Talent Lv. +2, up to a maximum of Lv. 15
Requirements / unlock: Eidolon 5
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While in Complete Combustion, increases SAM's Fire RES PEN by 20%. When using the Enhanced Basic ATK or Enhanced Skill, increases the Weakness Break efficiency by 50%.
Requirements / unlock: Eidolon 6