Cavern of Souls [Ultimate Masters] Skeleton Wall Simic mages create redundant backups

Simic mages create redundant backups of their experiments to reduce the consequences of catastrophe

Set: Starter 1999 Type: Basic Land — Swamp Rarity: Common ({T}: Add {B}

except it doesn't copy that creature's color and it has "At the beginning of your upkeep

"Unskin these impure bodies

Set: Commander 2016 Type: Enchantment Rarity: Rare Cost: {G} Whenever an opponent plays a land

Cavern of Souls [Ultimate Masters] Skeleton Wall Simic mages create redundant backupsSet: 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.