It does not matter what model controls the zone, this guy spawns the same place like a normal mob, respawns 100pct like a normal mob, and drops scarred bolvrik skin NO MATTER his model type, plus one of those augs everytime.
The model was an eye for me. Most of the mobs in the zone were also. They must change for some reason but this named always drops the the Scarred Bolvirk Skin.
Looked like Undead spectre to me when we killed it. It also dropped an aug with 2 disease damage on it as a rare drop. cant remember what it was called sorry < Dropped Scarred Bolvirk Skin for saga skins quest every time as well