Cheapest priced copy (Mirage): $64.99 at Card Kingdom, near mint, their price list as of .
Tombstone Stairwell 
World Enchantment · Rare · Mirage · #149
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.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $64.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mirage | 149 | Rare | $64.99 | — |
6 rulings from Wizards of the Coast
- 4 October 2004You control the triggered ability, but each player controls the token creature they put onto the battlefield due to the ability's effect.
- 4 October 2004Both the cumulative upkeep and the triggered ability trigger at the beginning of upkeep, so you can choose what order they resolve.
- 4 October 2004Does not put the Zombies onto the battlefield if this card is not still on the battlefield when its ability resolves.
- 4 October 2004All the tokens are put onto the battlefield simultaneously.
- 4 October 2004If something changes the names of the tokens, then the "at end of turn" ability will still destroy them.
- 1 October 2008This has the supertype world. When a world permanent enters, any world permanents that were already on the battlefield are put into their owners' graveyards. This is a state-based action called the "world rule." The new world permanent stays on the battlefield. If two world permanents enter at the same time, they're both put into their owners' graveyards.