Sorin, Eldrazi's Bane

+5: Put three 2/2 black vampire creature tokens with lifelink into play
-5: vampire creatures you control gain flying, double strike, deathtouch, lifelink, trample, rampage 5, bloodthirst 5 and haste until end of turn
-20: Put 100 3/3 black vampire creature tokens with lifelink into play