Swampfire

Swampfire Swampfire was the first alien used by Ben in Alien Force, during the episode Ben 10 Returns: Part 1. ==

Swampfire is a humanoid plant-like alien with a flame-patterned head. The species is taller than the average human, and has a distinct rotten smell that worsens with heat. ==

Abilities
==
 * Superhuman Strength: He knocked down a whole Highbreed weather tower.
 * Chlorokinesis: controls plant life through a type of gas.
 * Seeds: He can throw seeds that grow into large plants.
 * Regeneration: healing and vast regenerative powers to the point of near-invulnerability, His regenerative ability also allows him to tunnel underground in vine form, grow his feet to root into the ground, heal his limbs, pass through prison bars, and heal other creatures. His ability to pass through prison bars is present when he convinces Bellicus to become an invincible form of Swampfire from his Alien X form.
 * Fire Projection: He possesses the power to shoot fire from his palms, his fire is created by igniting methane naturally produced within his body, which results in him having a bad smell, similar to Stinkfly.
 * He can emit a gas that can knock people unconscious.
 * The fire blasts, semi-invulnerability and regenerating abilities have positioned him as a replacement of Benmummy, Wildvine, Heatblast, making Swampfire Ben's new main alien.

Weakness== When Albedo transformed into Big Chill he was able to freeze Swampfire. However, this attack created little distraction as Ben broke free using a similar method that he used during the first Highbreed invasion. he ignited the methane in his wrists and broke free when Albedo least expected it. Swampfire,however, is more vulnerable than Heatblast because he can be frozen for periods of time,unlike Heatblast, who is completely invulnerable to cold ==

Trivia

 * Swampfire is the first Omnitrix alien used by Ben in Ben 10: Alien Force and the first ultimate alien used by Ben.
 * It is possible that his powers are a reference to heatblast, the first alien Ben turned into.