Prophecy Destroyer

Haste, flying, menace, trample
{x}{x}{b}{b}{r}{r}: Exile up to X cards each from
one or more graveyards, then return Prophecy
Destroyer from your graveyard to the battlefield
tapped. You may play those cards for as long as
they remain exiled, and you may spend mana as
though it were mana of any color to cast Spells
from among those exiled cards. Activate only as
a Sorcery.