Dragritter, Fariiza: DZ Booster Set 04: Destined Showdown

Overcharge - [AUTO](RC):When this unit boosts, 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 until end of that battle, at the end of that battle, if you did not [Counter-Charge] this turn, [COST][retire this unit], and [Counter-Charge 1].