Marks the ally with the highest ATK. During the cast of Majestic Concerto this time, increases Jack'n Roll's Mastery by 120% of the marked ally's initial Mastery. Afterward, deals DMG by 16% of Jack'n Roll's Max HP and extra DMG by 16% of Jack'n Roll's Max HP to a single enemy. The extra DMG is considered as Detonation DMG.

Selects 1 ally and increases their Turn Meter by 100%. Also, grants [Spotlight] on the ally for 5 turns. Only 1 selected target on each side can have [Spotlight]. Based on the [Overture]/[Change]/[Finale] phase which the ally Jack'n Roll's [Rhapsody] is in, increases Direct DMG dealt and DoT dealt by the one with [Spotlight] by 20%/25%/30%, and additionally grants the ally Jack'n Roll 1 layer of [Beat] at the end of each turn.

Jack'n Roll is immune to [Stun] and [Freeze] and his Turn Meter cannot be additionally increased or reduced. At the end of any turns, Jack'n Roll gains 1 layer of [Beat]. If anyone dies, Jack'n Roll gains 20 layers of [Beat]. When a battle starts, Jack'n Roll begins the [Overture] of his [Rhapsody], and [Change]/[Finale] will begin as 100/200 layers if [Beat] are stacked. [Rhapsody] and [Beat] will not be removed when the owner dies or at the wave transition. [Overture]: Increases all allies' Direct DMG dealt and DoT dealt by 20%; [Change]: Increases DMG Bonus to 25%. Grants all allies 1 layer of [Soothing Interlude] when allies and enemies have taken action for 20 turns in total each time or upon entering [Change] phase; [Finale]: Increases DMG Bonus to 30%. Reduces enemies' Healed Effect and Shielded Effect by 40%. Meanwhile, at the end of enemies' turns, additionally reduces the duration of all their buffs by 1 turn.

Increases all allies' SPD by 40% for 2 turns. Increases Turn Meter by 30% for the ally with [Spotlight] and 20% for other allies.