Dorumon (BT17-062) - Secret Crisis

[[Digivolve] [Dorimon]: Cost 0]
[When Attacking] If [Kosuke Kisakata] is in this Digimon's digivolution cards and your opponent has a level 6 or higher Digimon, this Digimon may digivolve into [Dorugoramon] in the hand for a digivolution cost of 4, ignoring its digivolution requirements.

[Retaliation] (This Digimon also unsuspends during your opponent's unsuspend phase.)