name: Tombstone Stairwell
originalText: Cumulative upkeep {1}{B} 
  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.
printings: MIR
text: Cumulative upkeep {1}{B} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
  At the beginning of each upkeep, if this enchantment is on the battlefield, each player creates a 2/2 black Zombie creature token with haste named Tombspawn for each creature card in their graveyard.
  At the beginning of each end step and when this enchantment leaves the battlefield, destroy all tokens created with this enchantment. They can't be regenerated.
type: World Enchantment