escence of toski

companion-the colors of you deck must be either{w}{u}{b}{r}{g}, {w}{b} or{u}{r}{g}
this backround may only attack if you control 2 or more legendary permanents and have cast 4 or more spells this turn
when ever this backround deals damage to an opponent they exile there graveyard
annilalator 3
{0}{t}-target player looses 15 life at your next upkeep you must pay{b/g}{r/w}{w/u}{2} or you loose the game