Is Vilgax a guy?

Vilgax is an intergalactic alien warlord and conqueror, a Chimera Sui Generis who serves as Ben’s archenemy, and the most recurring villain in the ongoing franchise, having appeared multiple times in all the series. Ben considers him as one of the most dangerous villains he has faced.

Why did Chromastone become Diamondhead?

Chromastone can generate light from his hands. Although it isn’t one of Chromastone’s natural abilities, just an intervention of the Omnitrix, Chromastone transformed into Diamondhead after Vilgax shattered him. According to Tetrax, Chromastone has more abilities than the ones that are known.

How did Diamondhead defeat Vilgax?

All that’s left of Chromastone is his shards and the Omnitrix, which Psyphon takes and hands it to Vilgax. However, the Omnitrix activates and Chromastone’s remains start to regenerate into Diamondhead. Diamondhead attacks and defeats Vilgax, forcing Vilgax to yield to Diamondhead.