Razzkatazz, L19 ratling assassin, got blinded and stunned by a door trap on d:20. Shortly thereafter some powerful monster comes along and starts pummeling poor ol' visually and mentally impaired Razzkatazz. I didn't really care about this character, because he got crowned champion of balance where I was going for a precrown, so ultra ending was no longer possible, so I gave up on Razzkatazz and let him get killed.
The message I received upon death was: "You are transformed into a quasit." So what is it that killed Razzkatazz, a greater daemon?