Vecna, The Whispered One

At the beginning of your upkeep, you may pay {2}.
If you do, you draw a card and you lose 2 life.

At the beginning of combat on your turn, Vecna gets +X/+X where X is the number of cards in
your hand.

At the beginning of your end step, if you lost 2 or more life this turn, create a 2/2 black Zombie creature token.