Cavern of Souls (Topper) [Ultimate Masters Box Topper] Trap (Effects that say "destroy" don't

(Effects that say "destroy" don't destroy them

At the beginning of your upkeep

you may change "target black spell" to "target blue spell

Each adventure in the game takes place over several pages of the immersive AdventureBook

Set: Portal Three Kingdoms Type: Sorcery Rarity: Rare Cost: {X}{R} Rolling Earthquake deals X damage to each creature without horsemanship and each player

Cavern of Souls (Topper) [Ultimate Masters Box Topper] Trap (Effects that say "destroy" don'tSet: Ultimate Masters Box Topper 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.