Cyclopean Tomb [Beta Edition] XY121 Set: Sun & Moon: Guardians

Set: Sun & Moon: Guardians Rising Type: Psychic Rarity: Promo Retreat cost: Colorless

Set: Black & White: Next Destinies Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

you may change "swampwalk" to "plainswalk

Set: Box Topper Type: Fire Rarity: Promo Retreat cost: Colorless

Cyclopean Tomb [Beta Edition] XY121 Set: Sun & Moon: GuardiansSet: Beta Edition Type: Artifact Rarity: Rare Cost: {4} {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 Cyclopean Tomb 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 Cyclopean Tomb but that a mire