Cavern of Souls [Avacyn Restored] POP Series 3 instant and sorcery spells you

instant and sorcery spells you cast this turn cost {3} less to cast

Set: Ikoria: Lair of Behemoths Type: Legendary Artifact Rarity: Rare Cost: {1} Whenever a creature you control leaves the battlefield

Set: Unknown Event Type: Enchantment Rarity: Common Cost: {2}{R} Poison Tolerance +2 (It takes two additional poison counters for you to lose the game

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {0} Destroy target nonblack creature

Cavern of Souls [Avacyn Restored] POP Series 3 instant and sorcery spells youSet: 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.