Living End

Suspend 3 - {2}{b}{b}
(Rather than cast this card from your hand,
pay {2}{b}{b} and exile it with three time counters
on it. At the beginning of your upkeep, remove a
time counter. When the last is removed, cast it
without paying its mana cost.) Each player exiles
all creature cards from their graveyard, then
sacrifices all creatures they control, then puts all
cards they exiled this way onto the battlefield.