Cavern of Souls [The List] Paikuhan Set: Urza's Destiny Type: Enchantment

Set: Urza's Destiny Type: Enchantment Rarity: Rare Cost: {1}{B} Whenever a creature enters the battlefield

Set: Scars of Mirrodin Type: Artifact Creature — Construct Rarity: Rare Cost: {5} {T}

Set: Commander Anthology Type: Artifact Rarity: Mythic Cost: {5} Creatures you control get +1/+1 and have flying and indestructible

" —Ob Nixilis

Visitors marvel at its design

Cavern of Souls [The List] Paikuhan Set: Urza's Destiny Type: EnchantmentSet: The List Type: Land Rarity: Rare As Cavern of Souls enters the battlefield, choose a creature type. T: Add 1 to your mana pool. T: Add one mana of any color to your mana pool. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.