Cavern of Souls [Ultimate Masters] World Magic Cup Qualifiers Set: Commander's Arsenal Type: Enchantment

Set: Commander's Arsenal Type: Enchantment Rare Cost: {1}{G} At the beginning of your draw step

you may put it onto the battlefield

Set: Legends Type: Creature — Elemental Rare Cost: {2}{U} When Time Elemental attacks or blocks

Maro-Sorcerer's power and toughness are each equal to the total number of cards in all players' hands

a pain beyond description

Cavern of Souls [Ultimate Masters] World Magic Cup Qualifiers Set: Commander's Arsenal Type: EnchantmentSet: Ultimate Masters Type: Land Mythic Cost: 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.