Ultimate Alien X, Ben 10 List Wiki

Ultimate Alien X was the Ultimatrix's Ultimate Celestialsapien who doesn't exist. When asked if Ultimate Alien X is weaker than its regular version due to a mutation, Derrick J. Wyatt said that would be a dumb idea.

Ben Tennyson - Incredible Characters Wiki

Ultimate Alien X, Ben 10 List Wiki

Ben 10 Ultimate Alien: Cosmic Destruction, Ben 10 Wiki

Snare-Arms, Ben 10 List Wiki

Alien X, Ben 10 List Wiki

The wiki seems to confirm UAF diamondhead is a petrosapien crystalsapien hybrid. : r/Ben10

Charmcaster (Classic), Ben 10 Wiki, FANDOM powered by Wikia

Ben 10: Ultimate Alien (TV Series 2010–2012) - IMDb

Ultimate Humungousaur, Ben 10 List Wiki, Fandom in 2023

Ben 10: Ultimate Alien (TV Series 2010–2012) - IMDb

Ben 10: Ultimate Alien (TV Series 2010–2012) - Episode list - IMDb

Ben 10/Generator Rex: Heroes United - Wikipedia

Ignaceous, Ben 10 List Wiki

Was looking up Gojo on Vs battle wiki when I saw this saying he wins Ben if Alien X is restricted, this is actually outrageous. : r/Ben10

Ben 10: Alien Swarm - Wikipedia