Trinity, Death's Call

+3: Place the top four cards of your library into your graveyard. If any of them are Zombie creatures, summon them to the field on your next upkeep
-3: Take control of one of your opponents monsters. They lose all abilities and become a 2/2 Zombie token.
-8: Opponent loses life equal to one of your monsters with the highest toughness and has to send that many cards from their library to the graveyard.