Elric of Melnibone

Menace
Elric of Melnibone gets +X/+0, where X is the
amount of life you've lost this turn.
Whenever Elric of Melnibone attacks, you may sacrifice another creature.
If you do, draw cards equal to that creature's
power and you lose life equal to
its toughness.
"Let us give this Age cause to hate us!"