Cavern of Souls [Ultimate Masters] Torment Promos Set: Junior Super Series Type:

Set: Junior Super Series Type: Creature — Merfolk Rarity: Rare Cost: {U}{U} Other Merfolk get +1/+1 and have islandwalk

but it is necessary

Activate only if you have at least 10 life more than your starting life total

you may pay {2}{W}

that player sacrifices a green or white permanent

Cavern of Souls [Ultimate Masters] Torment Promos Set: Junior Super Series Type:Set: 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.