Visceni, the Great Plague

+1: Put a -1/-1 counter on target creature. If you control that creature, you may draw a card.
-2: All creatures get -1/-1 until your next turn. Whenever a creature dies this turn, each player loses 1 life.
-7: You get an emblem with "Creatures you control have undying." and "At the end of each turn, remove all +1/+1 counters from all creatures."