the multiverse

as long as you control the multiverse all planeswalkers are under your control, and before attacking all opponents must roll a 6 sided die. a 4 or higher allows that creature to attack, else that creature can not attack this turn.
{t}: add {x} mana to your mana pool
{t}: add {w}{u}{b}{r}{g} to your mana pool
{t}: destroy target creature
{t}{x}: search your library for a card named maw of the multiverse and put it into your hand. then shuffle your library.