Like the Place holder for instance?
Note: For all map points of nameds in Sanctum Somnium (for "somnium.txt" map files), see this quest entry.
Archmagus Erlen's PHs are some of the "a royal archmage" mobs in the eastern part of the zone (some of them are PHs for Archmagus Nesalie).
He hits for a max ~14,000.