Deathtouch, Haste, Shroud,

{B}{B}: Hitman (Create a Black 5/5 Demon Creature token with flying and Decay that creature attacks immediatly)

{19}{2/B}{B/P}: Transform The Devil

Deathtouch, Flying, Haste, Swampwalk, Lifelink, Industructable

{6}: Target creature returns from the graveyard to your battlefield

{6}: You gain 3 life and each opponent looses 3 life, but your opponents cannot loose this way

{6}: Creatures you control gain +2/+2 and your opponents creatures get -2/-2 until end of turn