Is he a mutated Pheyden from the past or present? Another strange alien from the Glyos universe, with secret motivations? The reincarnation of an ancient demon, hell-bent on destroying space and time?
It hasn't been touched on much in the official Glyos chronicles, but in my universe, I see Phanost as a unique individual.
As such, he wears different suits and uses technology to achieve his goals.
This is the Phase Suit, which allows him to pass through solid objects. The power source for the suit is located in his legs, under extra-armored boots. They are known to glow when activated...
The head of this Phanost is a hand cast, and the body utilizes parts from Cyber Ghost Exellis, Aves Exellis, Empire Exellis, and Solaris Exellis.