Ulgrothan Crypt

{t}: Add {c}.
Whenever a nontoken creature dies, any player
may pay its mana cost plus an additional {1} or
1 life to create a token copy of that creature with
Haste and "Sacrifice this creature at the
beginning of the end step."
Whenever a player has no creature cards in their
graveyard, sacrifice Ulgrothan Crypt.