The proper name for evil Saints?

[Psyren]

Problem with "Fane" is that it already means "temple or shrine." TSR adventure D3 had the Great Fane of Lolth, which was a temple. I kind of like Selerate.

I don't see this as a big deal. Words can have multiple meanings - "temple" for instance also means "flat part of the side of one's head."

Even when "fane" means temple, it's typically used to connote "evil temple" specifically.

Why shouldn't an evil saint just be called a saint? What makes a saint a saint isn't that they're good, it's that they're pious and perform miracles. If you serve an evil god then being pious is evil.

Because saint has become associated with good by connotation. Yes, you can technically have evil saints, or evil religions that consider themselves holy and the good religions unholy, but in a gaming context you'll almost never see those usages applied that way.