When Ben was facing a zombified girl he was able to use a new crystal-like alien that can absorb electricity that the girl was going to use to shock him with. Plus this alien is nearly indestructible. This new alien is named Chromastone!
Species and Home planet: Chromastone Species is a Crystalsapien and the home from which he comes from is the same home planet where Diamondhead lives which is Petropia. See image of planet below:
Description (Alien Force and Ultimate Alien): Chromastone can be described as a silicon based life form that’s made of extremely durable crystal. His body is overall a purple color, with several dark lines and spots. His hands and face are magenta, he sports six magenta shards on his back, two on his chest, and one on the top of his head that resembles a horn almost like a unicorn’s horn except shorter. His face consists of a mouth and one large light green eye at the center. Also the Omnitrix symbol is located on his chest. See image below:
Omniverse Description: When Chromastone appeared in Omniverse, he did look exactly the same except that the crystals on his back and head are much longer than usual. When he appeared in the episode A New Dawn, his appearance had completely changed like for example now wears a green jumpsuit and green gauntlets on his wrists and legs. He also has three spikes on his shoulder and arms, as well as some on his knees and four on his head. The spikes on his chest are gone. His face now has a magenta chin that resembles a mouth guard, and he now speaks without moving his mouth at all. The New Omnitrix symbol is now on his right pectoral instead of his chest. See images below:
Special Abilities: Chromastone’s first ability shows that he has the ability to allow energy to phase through his body without harm, as well as absorbing various forms of energy and channel it into ultraviolet beams. These beams can annihilate entire turrets or melt through a truck trailer. Chromastone’s second ability shows that he can also project a beam of light for illumination purposes. In the episode, The Ultimate Enemy: Part 2, Chromastone’s third ability shows that he’s able launch out energy blasts without having to absorb anything, but only to a limited extent. Chromastone’s fourth ability shows that he’s capable of manipulating the energy into bolts, rather than beams, as well as generating a powerful energy blast expanding out in a 360 degree radius, creating an energy shield, blasting an energy beam from his eye and crystal on his head, generating green energy, and wielding energy fists. Chromastone’s fifth ability is that he has a very dense, crystallic skin that gives him superhuman durability. Chromastone also possesses some enhanced strength (which is his sixth ability). As seen in The Creature From Beyond, Chromastone’s sixth ability shows that he’s capable of flying. Chromastone’s seventh ability shows that he can generate light from his hands. Although it wasn’t one of Chromastone’s natural abilities, just an intervention of the Omnitrix, because Chromastone transformed into Diamondhead after Vilgax shattered him into pieces. Also according to Ben’s friend Tetrax, it turns out that Chromastone has more abilities than the ones that Ben already knows. Chromastone’s final ability shows that he’s immune to a Xenocyte (a.k.a DNAlien Parasite) merging with him. See images below:
Weaknesses: One of Chromastone’s weaknesses is that he can’t absorb energy when he isn’t not expecting it or is too weak to do so. As shown in the episode Fame, Chromastone’s second weakness shows that he can’t absorb electricity when it’s being conducted by water. Chromastone’s third weakness shows that thought he’s indestructible he isn’t fully indestructible as he thinks because during the episode The Vengeance of Vilgax Part: 2, Vilgax used his powerful sword (that had crystals grow on it) to shatter Chromastone into a million pieces even though the pieces reassembled and Diamondhead appeared. Chromastone’s final weakness shows that he appears to have a limit on how much energy he can absorb at once. As shown in The Enemy of My Frenemy, he tried to absorb a lot of energy from the sorcerer’s engine, he was instead disintegrated. See images below:
First Appearance: All That Glitters