Diamondhead is the Omnitrix's DNA sample of a Petrosapien from the planet Petropia.
Diamondhead now has yellow eyes again, has more crystals growing on his chest and back, and wears a green, black and white suit that resembles Ben 10,000's original Diamondhead. His suit also contains a black and green hood.
Powers and Abilities
Diamondhead's body is composed of extremely thick organic green crystals. He has the ability to manipulate the atomic structure of his physiology at will, allowing him to form his limbs into diamond weapons such as blades and bludgeons.
Moreover, he can control all the crystals he generates. He can fire crystal shards sequentially out of his hands, as well as explosive ones, and can explode his body parts into crystalline formations, as well as make crystal constructs grow from his body. Diamondhead's body resembles a living prism, allowing weapons similar to lasers to be refracted and rendered useless. He is able to absorb energy blasts and redirect them, rather than just refracting. Similarly, rays generated by dimensional transporter devices will reflect off of Diamondhead's body.
Diamondhead has inhuman physical abilities, enough to easily able to overpower Vilgax in a one-on-one brawl. Due to the natural density of crystal, Diamondhead is extremely durable to physical impacts.
Diamondhead is resistant to fire and heat, much like an ordinary diamond. Because he is made out of organic crystals, Diamondhead is immune to aging. Therefore, he is impervious to time rays generated by a Chronosapien or another time-related entity such as Eon, as diamonds do not age.
Despite his enhanced durability, Diamondhead's body can crack and shatter if he's impacted with enough force. Diamondhead is especially weak to sonic vibrations, rendering Diamondhead unconscious. The two shards on his back can also leave him stuck on a wall or on other surfaces that he gets knocked into.