Demigra, Unison of Sorcery (BT10-064) [Rise of the Unison Warrior (2nd Edition)]

Product Details

[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.