Doom of Worlds

{p/b}, {p/r}, and {p/u} must be payed with {8} of the corresponding color. You may only cast this card
if you have 10 creatures in your graveyard that
where sent there because they were sacrificed by
an effect. If a creature under your control would
be sacrificed, use it as a sacrifice but do not place
it in your graveyard. Instead, Tap it. Once per
turn, you may activate this effect:
{u/b}{b/r}: Cast a creature from your graveyard. if
no cards in your graveyard where sacrificed
originally,