name: Cyclopean Tomb
originalText: {2}: Turn any one non-swamp land into swamp during upkeep. Mark the changed lands with tokens. If Cyclopean Tomb is destroyed, remove one token of your choice each upkeep, returning that land to its original nature.
printings: 2ED, 30A, CED, CEI, LEA, LEB, ME4
text: {2}, {T}: Put a mire counter on target non-Swamp land. That land is a Swamp for as long as it has a mire counter on it. Activate only during your upkeep.
  When this artifact is put into a graveyard from the battlefield, at the beginning of each of your upkeeps for the rest of the game, remove all mire counters from a land that a mire counter was put onto with this artifact but that a mire counter has not been removed from with this artifact.
type: Artifact