Cavern of Souls (Topper) [Ultimate Masters Box Topper] Trap Each adventure in the game

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

At the beginning of your upkeep

flip a coin

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

She is quick with languages and was educated at the same Argivian university as Hanna

Cavern of Souls (Topper) [Ultimate Masters Box Topper] Trap Each adventure in the gameSet: 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.