Ultimate Swampfire is a plant like alien and the first ultimate used by Ben. With a body made of petrified wood, he stands on two root like feet. His head is protected by a fire-proof shield.

Ultimate Swampfire can create and shoot extremely hot blue fire. He also has the plantlike ability to re-grow and re-attach torn off limbs or body parts. He can control plant life around him, using it as a shield or to entangle his enemies. Unlike regular Swampfire he is made of very tough material and is very difficult to damage. Incredible strength add to his collection of powers making him a very useful alien.

Swampfire is available as a 10cm action figure.