Decomon Deathclaw

0: Each opponent looses 2 life and you gain the amount of life lost.
-6: Put a 5/5 black Demon with flying onto the battlefeild. Creatures you control have haste, vigilance and +1/+1 until end of turn.
-11: Put two 5/5 black Demons with flying onto the battlefield. Each player looses 10 life. Then they gain 8 life.