Cage spell

Forms a cage 1.5x bigger than the creature around it, it can not be broken but it can be moved if you are capable of moving the creature inside (Strength check), air can pass through unless prevented physically by covering the cage in an in-passable material (basically you can stop airflow like it's a normal cage, if you can even get something around the cage) The creature inside is also incapable of moving the cage from inside (via slamming against the bars or maybe trying to pull the ground outside the cage)