Rage Demon

When Rage Demon enters the battlefield, it deals damage equal to its power to any target.
Possession {2}{u}{b} (If you cast this card for its Possession cost, it's an aura spell with enchant creature. It returns to your hand if it's not attached to a creature.)
Enchanted creature gets +2/+1
Whenever enchanted creature dies, it deals damage equal to its power to any target.