Phenox

Rebirth
Death knights are the former champions of the Scourge. They fortify their bodies and drain life energy itself with the power of blood, sharpen their blades and strike powerfully with the power of frost, and raise the dead while striking with the unholy fervor granted by undeath. They are engines of destruction chosen by the Undead Scourge to serve the almighty will of the Lich King.

The playable death knights are the uniformly undead members of the Death Knights of Acherus, a regiment consisting of hundreds of death knights stationed at the necropolis Acherus: The Ebon Hold under the direct command of the Lich King and Highlord Darion Mograine. These death knights were set loose upon the Scarlet Enclave, culminating in the flight of the newly-formed Scarlet Onslaught to Northrend and the subsequent massacre known as the Scarlet Apocalypse, in which the death knights decimated Scarlet reinforcements. After this, the Death Knights of Acherus were sent to Light's Hope Chapel to destroy the Argent Dawn.

During the Battle for Light's Hope Chapel, the Lich King, in betrayal of his death knights, was willing to sacrifice them to kill Highlord Fordring. Darion threw the Ashbringer to Highlord Fordring, purifying it and, in a large burst of Light, freeing the death knights from the Lich King's grasp and forcing the Lich King to retreat.

The freed death knights took Acherus from the Scourge and formed the Knights of the Ebon Blade under the command of Highlord Mograine. The Ebon Blade sent many of its freed death knights to their respective factions – Alliance or Horde.

Post Battle of Lights Chapel
Phenox doesn't remeber anything of his life prior to his rebirth. Phenox is obsessed with redeming himself to the alliance.

Additonal Information
Phenox has a stone that turns him into an obsidian nightwing

Phenox has a crystal of insanity which makes him stronger