AmpFibian

Ampfibian will be a new alien in Ben 10: Ultimate Alien. His name is a combination of the word "Amperis", which is a measurement for electricity, and amphibian, a life form that can live in both water and on land, such as frog or salamander. Ampfibian's species is one of the five aliens from the Andromeda Galaxy that are not in the Ultimatrix, scanned by Ben from Ra'ad, the last of Aggregor's escapees. Ben turned into him in the episode Fused.

Appearance
AmpFibian is a blue jellyfish-like alien with four long, slimy arms and a pair of legs. His body is composed mostly of water, giving him the appearance of being completely made of water. The AmpFibian captured by Aggregor is named Ra'ad.

Abilities
He can shoot electrical blasts from his 4 arms and can fly. Like the other aliens Aggregor has captured, he controls a basic element, his being Lightning. He also floats in mid-air while not in water. In Escape From Aggregor‎‎, his species has the ability to produce blue electricity, though Ampfibian changed to green, similar to Buzzshock and Benvicktor having green electricity and the Megawhatt having yellow electricity and Dr. Vicktor having purple. Ampfibian can squeeze through tight, small spaces, as a lack of bones can't restrict his movements and can travel through electric currents. He has also shown the ability to turn intangible like Big Chill or Ghostfreak. He also shows the ability of telepathy, which is done by reading the electric pulses in a person's mind

Trivia

 * His name is a play on amp(a unit of electricity) and amphibian(because of his slimy appearance).
 * His transformation sequence is similar to the sequences from the original series.

His transformation was different than the other Ultimatrix aliens.