Cyclopean Tomb [International Collectors' Edition] Kaldheim Promos it produces three times as

it produces three times as much of that mana instead

Set: Sword & Shield: Silver Tempest Type: Dragon Rarity: Secret Rare Retreat cost: Colorless

Set: Sword & Shield: Crown Zenith Type: Supporter Rarity: Ultra Rare

I can no longer recall where I found it

Cyclopean Tomb [International Collectors' Edition] Kaldheim Promos it produces three times asSet: International Collectors' 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