As an additional cost to cast this spell, reveal a colorless creature card from your hand. Exile target creature if its power is less than or equal to the revealed card's power.
Dust and memory are all that remain in Ulamog's wake.
Lifelink At the beginning of your end step, if you gained life this turn, you may pay X life, where X is the amount of life you gained this turn. If you do, create an X/X black Demon creature token with flying.
Target player sacrifices a creature or planeswalker. Delirium — If there are four or more card types among cards in your graveyard, instead that player sacrifices a creature and a planeswalker.
"Where has little Gossamer gone?" —Thaniel, Gatstaf shepherd
Togglodyte enters the battlefield turned on. Whenever a player casts a spell, toggle Togglodyte's ON/OFF switch. As long as Togglodyte is turned off, it can't attack or block, and prevent all damage it would deal.
Flying Whenever Tomb Blade deals combat damage to a player, that player loses life equal to the number of creatures they control unless they sacrifice a creature. Unearth {6}{B}{B}
Target creature gets -2/-2 until end of turn. Landfall — If you had a land enter the battlefield under your control this turn, that creature gets -4/-4 until end of turn instead.
Other Zombies you control get +1/+1. {2}{B}, {T}, Sacrifice a creature: Return a Zombie creature card at random from your graveyard to the battlefield. Activate only during your turn and only if there are at least three Zombie creature cards in your graveyard.
Cumulative upkeep {1}{B} At the beginning of each upkeep, if Tombstone Stairwell 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 or when Tombstone Stairwell leaves the battlefield, destroy all tokens created with Tombstone Stairwell. They can't be regenerated.
Tome of Legends enters the battlefield with a page counter on it. Whenever your commander enters the battlefield or attacks, put a page counter on Tome of Legends. {1}, {T}, Remove a page counter from Tome of Legends: Draw a card.
When Tooth Collector enters the battlefield, target creature an opponent controls gets -1/-1 until end of turn. Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, target creature that player controls gets -1/-1 until end of turn.