Cavern of Souls [The List]Set: The List Type: Land Rarity: Rare 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.

Set: International Collectors' Edition Type: Instant Rarity: Rare Cost: {W} Cast this spell only during combat before blockers are declared

Set: Battle Royale Type: Creature — Rat Rarity: Common Cost: {B} {B}

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

destined for battle

Set: Fourth Edition (Foreign Black Border) Type: Artifact Creature — Spirit Rarity: Rare Cost: {4} Flying (This creature can't be blocked except by creatures with flying or reach

Set: Mercadian Masques Type: Land Rarity: Common Remote Farm enters the battlefield tapped with two depletion counters on it

Channel — {3}{R}

(Auras with nothing to enchant remain in your graveyard

Set: Aether Revolt Type: Legendary Artifact Creature — Thopter Rarity: Rare Cost: {1} Flying

put a number of charge counters on Geometric Nexus equal to that spell's mana value

{0}: Regenerate enchanted creature

and many more will follow