Demigra, Unison of Sorcery (Level 2) BT10-064 Promo

[Permanent] If this card would lose a marker from an opponent’s attack, you may add 1 card from your life to your hand instead.
[+1] [Activate:Main] This card gets +10000 power for the turn.
[-3] [Activate:Main] Choose up to 1 of your opponent’s Battle Cards, KO it, then choose up to 1 of your opponent’s Battle Cards with an energy cost of 3 or less, ignoring [Barrier], and KO it.