Somewhere in the Hellaverse, in a Goetian Palace, in a bedroom, there stands a Gietia version of Ben Tennyson, he's reading a grimoire, bored out of his mind
Physical Features In this Goetia-inspired form, Ben Tennyson takes on the physiology of an Ars Goetia avian demon. His entire body is covered in sleek, dark forest-green plumage, with his head featuring a sharp, obsidian-colored beak and a tufted crest of feathers that mimics his signature messy hairstyle. His eyes are a piercing, luminous neon green with slit pupils, lacking visible sclera, which gives him a predatory yet sentient gaze. He possesses a pair of large, powerful wings with layered green feathers extending from his shoulder blades. His limbs are lean and athletic, ending in four-toed avian talons on his feet.
Clothing Despite his demonic transformation, Ben retains his iconic color palette and wardrobe style.
Shirt: He wears a white, short-sleeved ringer tee with a thick black vertical stripe running down the center, framed by a black collar and sleeve cuffs.
Pants: A pair of olive-drab or tan cargo shorts with functional side pockets.
Footwear: He sports black-and-white high-top sneakers designed with open-toe sections to accommodate his sharp talons.
He of course still bears the Omnitrix
The Omnitrix looked like a large wristwatch with a wide band, primarily black and grey in color. It had a dark grey faceplate in the middle (like a watch dial) that had a green hourglass shape (the symbol of universal peace/Galvan Tech) on it. The faceplate was part of a cylindrical tower; when Ben selected his aliens, the tower would pop up from the base of the Omnitrix, and the hourglass would invert into a diamond and show the aliens' silhouettes. The band had an activation button on the side facing the user if on their left hand. The ring of the faceplate had four symmetrical lights that would glow with the hourglass symbol. Finally, the band had two rings of white tubing, that would glow green under special circumstances.
It will so be hero time.
He sighs
I wish I was human again.