Nioas

Nioas is a praecitus male warrior who used to serve as a Vorpal Guildsman during the Victron War before his death, later being resurrected and fighting in the Darkening Mind War. 
Prior to the Victron War, Nioas was friends with Guildsman Roc Derith, who later transformed into the corrupted Victron leader Vrachos.
During the Victron conflict, Nioas served as the guardian of Exia, and mentored her throughout her time in the Guild. He served in some battles, but he mostly worked behind the scenes to help with political negotiations, alongside being an efficient strategist. At one point, he befriended the Vitron Samurai Sacrator, who later recommended that Exia give the Praecitus Unity blade to Nioas.
Tragically, Nioas was slain in battle, due to being unable to overpower the revived Vrachos. His powers were then drained before they could find another host, and in his dying moments he gave Exia the Praecitus Unity blade to help her defeat the abomination. 
However, unbeknownst to everyone else, the abomination did not drain all of his power, and the little that remained stayed with his body, preserving him. Alongside this, the ship transporting his body was shot down, leaving to nobody being able to discover this. 
A few years later, however, minions of Lord Trark found this body, and the individual known as ‘The Surgeon’ revived him. Lord Trark then forced the newly resurrected Nioas to work for him to repay the debt of his resurrection, with the threat of severe consequences occurring if he did not comply. Nioas eventually broke free of this, and claimed armour Track was hoarding before reuniting with Exia, joining her cause. He was later sent by Exia to find out General Deuce, and rally the Vorpal Legions to help liberate her home-world,