Rakt, Darkness Cursed

: Whenever you surveil you may proliferate. If you do, put a -1/-1 counter on any target creature you control.
0: Exile Rakt until the beginning of your next turn. Your opponent can't cast spells for the rest of the turn.
-4: Surveil 10, then draw 5 cards. You may reveal your hand. If you do, put a -1/-1 counter on all creatures target player owns, then proliferate.