Cavern of Souls (345) Mobilize while the unwitting world moved

while the unwitting world moved below

if there are fourteen or more cards in your graveyard

Ulamog enters with a number of +1/+1 counters on it equal to the greatest mana value among cards in exile

Cleric or Mage or Ranger

then you may put a permanent card with mana value less than or equal to the number of lands you control from your hand onto the battlefield tapped

Cavern of Souls (345) Mobilize while the unwitting world movedThe Lost Caverns of Ixalan Cavern of Souls Land 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. Illustrated by Pedro Correa All Magic: The Gathering (MTG) card images and symbols Wizards of the Coast