Earth Release: Swamp of the Underworld

By changing the surface of an object (ground, ceiling, wall, etc.) beneath an enemy (relative to them) into mud and creating a swamp, the user can sink his enemy into the mud. The adhesive, chakra-infused mud ensnares the enemy's body, making it almost impossible to recover one's strength and escape from the swamp. The size and depth of the created swamp depends on the user's skill and the amount of chakra used, but if the user is an expert in this technique, it will always be possible to make a fair-sized swamp which is extremely effective against a great number of enemies or when having to face gigantic creatures. The technique can also be used on a smaller scale to trap individual foes.