Just holy guardians of some holy place! They have the blessings of a good aligned god (probably not active now so the guardians are free to wander thera) and have the unremovable curse of some evil gods too.
Long lived and so high wis (20str 20dex 20int 23wis 20con 20chr)

no removable curse (Their deity is no longer around), so no recall even if learn through supplications, spells (or their recalling works as teleporting on them?).
one of the two: (long lived guardians used to polearm/spear/staff and shields)
- can wield heavier polearm/spear/staff
- bonus to shields
partial sacred guardians?
bonus to consecrated armors
resist to negative (they got used to it over the years)
immune to holy

warrior/shaman/healer/paladin

another idea for the guardians is like the above, but not a limited race, instead as these guardians must find a new immortal, the race is empowerment based and some of skills/spells should be given through virtue similar systems. Maybe paladin as the only class for them is a good idea!