code:

He's a sphinx with a buckler and Invisibility.

He's an old unique with a muddled spellset and nothing valuable beyond
Paralysis on something with unique-level HD and defenses. He's got a
slightly uncomfortable theme of being a nihilist death cultist that
doesn't really invigorate his hex spells. Some people like his tile
once have a surfboard and still resembling a surfer without it, but
this isn't really enough to keep running with.

Late game is lousy with brutal, newer uniques from a few years ago,
so throwing old Norris out might help with such a glut. If somebody
can think of and test out a good, defining spellset using some spells
not as prominent as invis / para / confuse / smiting, maybe they can
bring him back, but none have really come forward.