Brainmatter

''"He's more of a genius than me." -'' Azmuth.

Ben 10,000 as Brainmatter
Brainmatter is the same size as Grey Matter with a crustaceous shell and Brainstorm's claws. Brainmatter has the Biomnitrix symbol located on his back.

Credit
The image of Brainmatter was created by RZGmon200.