Tombstone StairwellNear Mint $0.50
Cumulative Upkeep <1B>. During each upkeep, each player puts into play a Tombspawn token for each summon card in his or her graveyard. Treat these tokens as 2/2 black creatures that are unaffected by summoning sickness and count as Zombies. At end of any turn, or if Tombstone Stairwell leaves play, bury all of these tokens.