Ymir, The Father Of All

+2: Deals 7 damage minus X to target player. X being the number of creature that player controls.
-2: Until your next turn, the creatures target opponent controls phase out.(While they're phased out, they're treated as though they don't exist.)
-12: You take 5 extra turn after this one. At the beginning of each extra turn you can exile a creature, buy an extra card or gain 10 life.