Vex is the leader of Insignia Ark, and presides directly over the City of Ghosts, (Neon City), in the far north of the world. Though it's origins remain mostly mysterious, Horrors are surmised to be created when a powerful being dies in agony or great suffering, turning the nature of that person's energies into the opposite. As such, Vex is dark and cruel, though not without a twisted sense of justice and honor with which he plans to reshape the world. He speaks little, and unlike most of his underlings, he wastes little time with mocking, self confidence, arrogance or the like, preferring to decimate those who stand in his way and move on. He has a profound and personal hatred for the gods and goddesses, but other than them, any others that stand in the Ark's path are merely obstacles in his eyes. Trivial bumps in the road to be crushed.
Vex wields an incredibly powerful "Blaq Type' Alloy called Hope. It takes the form of a constantly swirling shadowy energy that he can change the size and shape of at will. Vex can use this same energy to summon blades, projectiles, and even living monsters to attack foes, and this can be done very quickly without even a movement from the Horror himself. Also a ferocious hand to hand combatant, anyone who is able to brave the ranged assault and make it to Vex are quickly torn limb from limb by his cruel claws and enormous strength, combined with an animalistic and unpredictable physical combat style. At close range he is impossible to hit, due to a constantly active technique called Kara ("Empty"), where Vex exists in a parallel universe while he is attacking, rendering any attack not delivered using the same technique useless.
His aalloy also contains various and very strong healing magic which he uses to aid his opponents defenses and abilities. The reasons behind this are kept secret.