Cavern of Souls

Type line

Land

Oracle text

As this land enters, choose a creature type. : Add . : 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.

Rulings

• You must choose an existing creature type, such as Human or Warrior. Card types such as artifact can't be chosen.2018-12-07
• The spell can't be countered if the mana produced by Cavern of Souls is spent to cover any cost of the spell, even an additional cost such as a kicker cost. This is true even if you use the mana to pay an additional cost while casting a spell "without paying its mana cost."2018-12-07
• The spell can't be countered if the mana produced by Cavern of Souls is spent to cover any cost of the spell, even an additional cost such as a kicker cost. This is true even if you use the mana to pay an additional cost while casting a spell "without paying its mana cost."2023-11-10
• You must choose an existing creature type, such as Human or Warrior. Card types such as artifact can't be chosen.2023-11-10

Market price

$50.05