Cavern of Souls [Ultimate Masters] Desert Some are filled with water

Some are filled with water

Set: Unlimited Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one color word with another

Occasionally a member of the Institute of Arcane Study acquires a taste for worldly pleasures

Set: Friday Night Magic 2001 Type: Instant Rarity: Rare Cost: {4}{R}{R} You may sacrifice two Mountains rather than pay this spell's mana cost

Set: Legends Type: Enchantment — Aura Rarity: Rare Cost: {W}{W}{W} Enchant creature

Cavern of Souls [Ultimate Masters] Desert Some are filled with waterSet: Ultimate Masters Type: Land Rarity: Mythic As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.