King Gomah, Overgrown Power (Ultra-Bout Series Tournament Pack Vol.13)

[Deflect] [Unique] [Permanent] If your life is at 4 or less and your opponent has 10 or more cards in their hand, reduce the energy cost of this card in your hand by 7. [Auto] When this card attacks, choose up to 1 of your "Demon Realm" cards and it gets +5000 power and [Critical] until the end of your opponent’s turn.