Alien X (Ben 10 Unleashed), Ben 10 Fan Fiction Wiki

Alien X is the Omnitrix's DNA sample of a Celestialsapien from the Forge of Creation. Alien X is a humanoid alien whose entire body is solid black, excluding his hands, which are white. He has tiny white star-like spots all over his body, giving him the appearance of a starry night sky. His eyes are green and lack pupils, and his forehead bears three horn-like protrusions. Alien X wears the Omnitrix symbol on his chest. Alien X has three personalities: Serena, the "voice of love and compassion"

Nanomech, Ben 10 Fan Fiction Wiki

Mummy Dusk (Earth-68), Ben 10 Fan Fiction Wiki

The Ultimate Alien, Ben 10 Fan Fiction Wiki

Ultimate Heatblast (Alien Alliance), Ben 10 Fan Fiction Wiki

Grey Matter, Ben 10 Fan Fiction Wiki

Arms Ben Fan Fiction Wiki Fandom Powered - Ben 10 Biomnitrix Jury

Ultimate Stinkfly (Alien Alliance), Ben 10 Fan Fiction Wiki

Alien X VS The Worst, Ben 10 Fan Fiction Wiki

Eatle, Ben 10 Fan Fiction Wiki

Alien X (Benzarro-OH), Ben 10 Fan Fiction Wiki

Elaskimo, Ben 10 Fan Fiction Wiki

Ultimate Humungousaur, Ben 10 Fan Fiction Wiki

A-pax (Omnitrix Unleashed), Ben 10 Fan Fiction Wiki

Ben 10: Ultimate Alien (Western Animation) - TV Tropes