Creature Land

Lands that animate themselves into creatures via an activated ability, then revert when the turn ends. Celestial Colonnade becomes a 4/4 flying vigilance creature, Mutavault becomes a 2/2 with all creature types, Mishra's Factory becomes a 2/2 Assembly-Worker, and Restless Cottage animates into a 3/3 with an attack trigger. These lands give mana-base slots a late-game threat or blocker without sacrificing land count. Distinct from land_types.utility_land, which covers non-mana abilities that don't animate the land, and from lands_matter payoffs that reward land drops rather than identifying the cycle. Cards that are already creatures on the battlefield, or instants that animate other lands, are not in scope.