Titan of Tortured Souls

Flying, Deathtouch, Shroud, Indestructible
Whenever Titan of Tortured Souls attacks or blocks you may put X -1/-1 counter on target creature you don't control, where X is its toughness minus 3. If you do, put two 1/1 black Ghost creature tokens with flying onto the battlefield for each -1/-1 counter placed this way and then draw a card and sacrifice a creature you control.