Zherrus Pleasure.

First Strike, Menace.
Zherrus Pleasure gains +X/+0 where X is the
amount of life you have lost this turn.
{p/c}{p/b}{p/u}: Put a -1/-1 counter on another creature.
Whenever a creature with a -1/-1 counter on it dies, draw a card.
You lose 1 life.
"I made an Allosaurus a widow."