Professor Onyx

Whenever you cast/copy an instant/sorcery spell,
each opponent loses 2 gain 2.
+{1}: You lose 1. Look at the top 3cards of your library. Put 1of them into your hand and the rest into your graveyard.
-{3}: Each opponent sacrifices a creature with the greatest power.
-{8}: Each opponent may discard a card. If they don't, they lose 3 life. Repeat this process 6 more times.