Gathering Of Witches

Whenever a creature dies Scry 1.
{b/g}{b/g}{b/g}, sacrifice 2 creatures: draw 2 cards
{x}{b}{g}, sacrifice X creatures: put X +1/+1 counters on target creature you control.
{b/g}{b/g}: the next time a land enters the battlefield under your control sacrifice a creature to draw 2 cards