Cavern of Souls [Avacyn Restored] SM171 Set: Conspiracy: Take the Crown

Set: Conspiracy: Take the Crown Type: Enchantment Rarity: Rare Cost: {G} Whenever an opponent plays a land

This card gains 1000 ATK for each Spell Counter on it

Set: Aquapolis Type: Water Rarity: Rare

Special Summon 1 "Mystic Swordsman LV4" from your hand or Deck

Set: Modern Horizons 2 Prerelease Promos Type: Artifact Creature — Assembly-Worker Rarity: Rare Cost: {3} If you would create a Clue

Cavern of Souls [Avacyn Restored] SM171 Set: Conspiracy: Take the CrownSet: Avacyn Restored 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.