Erase a Universe (BT16-017) - Realm of the Gods Foil

[Activate:Main] RBGY1, if your Leader Card is a "Great Priest" card : Deal 1 damage to your opponent for every 2 colors on "God" cards in your Battle Area. (2 damage max.) Additionally, if you have 12 or more multicolor "God" cards in play, you win the game.
[Activate:Battle] Choose up to 1 "God" card and it gets +6000 power for the battle.