Dharok the Wretched

Dharok the Wretched can't block.
When Dharok the Wretched attacks, it gets
+X/+0 until end of turn where X is equal to the
amount of life you have lost this turn. If you
have the lowest life total amongst players,
Dharok the Wretched has menace.
{b}, Pay 4 life, sacrifice a creature: Draw two
cards.