Carnage, Bloodthirsty Maniac

Vigilance, Lifelink, First Strike.
When Carnage enters the battlefield, destroy target creature.
Whenever a non-token creature leaves the battlefield, Carnage gains +X/+X where X is the creatures mana value.
{t}{b}{r}: Carnage deals damage to target creature equal to Carnage's power.

''Cletus Kasady became more of a monster after he obtained the Carnage symbiote.''- Eddie Brock.