There is a solo rygorr elite guard that spawns at the orc camp in Eastern Wastes. Blue to a 57 and seems to have very low hp for a Velious mob. I think it's about a 10 minute spawn timer. Just avoid going anywhere near the room with the chief/oracle as they will wreck you.
Necro mob in high keep is good till 57 I've heard:
https://wiki.project1999.com/Dyrna_Nlith