The simplest answer is unfortunately that the deathlord is not canon. Legion’s class halls were fun and a neat bit of story for each class, but the “every player is the leader of a massive organization” part was always questionable.
The final events of Legion, where the artifacts were sacrificed, showed us other class NPCs on the airship with us and in doing so showed who the canon leaders of the 12 Orders were. Mograine is the leader of the Ebon Blade in the story, sadly your character does not exist.