Malyk, Mercenary Executioner

Flying, Deathtouch
{5}{p/b}{p/b}{p/b}{p/b}{p/b}: Destroy all nondemon creatures on the battlefield, Malyk, Mercenary Executioner gets +X/+X, where X is the toughness of all the creatures that died this way.
"You never hired me under the condition that I can't kill your troops"-Malyk