Cavern of Souls [Ultimate Masters]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.

(They can't be blocked as long as defending player controls a Forest

Set: Aquapolis Type: Colorless Rarity: Common Retreat cost: Colorless

any player may pay half their life

Set: EX: FireRed & LeafGreen Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

Set: Kaladesh Prerelease Promos Type: Artifact Rarity: Rare Cost: {4} If an artifact or creature entering the battlefield causes a triggered ability of a permanent you control to trigger

tap Rohgahh of Kher Keep and all creatures named Kobolds of Kher Keep

Set: Sun & Moon: Burning Shadows Type: Water Rarity: Promo Retreat cost: Colorless

create seven 1/1 green Insect creature tokens

Set: Commander 2017 Type: Instant Rarity: Rare Cost: {1}{U}{U} Until end of turn

Set: POP Series 2 Type: Supporter Rarity: Uncommon

−1: Each opponent loses 2 life and you gain 2 life

Set: Unlimited Edition Type: Creature — Bird Rarity: Rare Cost: {3}{R} Flying