Leidenschaft Dragon: DZ Booster Set 10: Dragonsoul Resonance

Overcharge - [CONT](RC):If this unit was chosen by the ability of your grade 3 or greater vanguard with Aelquilibra in its card name this turn, this unit gets [Power]+10000. [AUTO](RC):At the end of the battle this unit attacked, [COST][retire this unit], choose one of your vanguards, and it gets [AUTO](VC):When this unit attacks, choose up to one of your rear-guards with the Overcharge ability, and it gets [Power]+5000 until end of turn. until end of turn.