Vecna

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,
a creature you control named Vecna gets +X/+X
until end of turn, 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.