Yeah, I'm not sure how to make that more precise. Does "mind-affecting" actually have a definition other than "charms, etc" in the SRD?
There's also the definition of a mind-affecting spell in the Descriptor section of the Magic Overview: " A mind-affecting spell works only against creatures with an Intelligence score of 1 or higher."
That's not much help, though.
Come to think of it, there are
some special qualities that are mind-affecting or based on mental abilities. Wild Empathy, for example.
Let's try to keep it simple and model the SQ and SA on the same principles.
How about.
Special Attacks: A Phlegamor's servant loses all spell-like special attacks and any special attacks from the base creature's character classes, if any. It retains any extraordinary or supernatural special attack of the base creature that is purely physical in nature, including breath weapons, but loses any special attack that is mind-affecting, language-dependent, or has a saving throw DC based on a mental ability score (Int, Wis or Cha). It also loses any special attack that operates as a spell but is not a (Sp) ability, such as a krenshar's
scare.
Special Qualities: A Phlegamor's servant loses all spell-like special qualities and any special qualities from the base creature's character classes, if any. It retains the extraordinary or supernatural special qualities of the base creature with the following exceptions. It loses any special quality that is mind-affecting, language-dependent, or has a saving throw DC based on a mental ability score (Int, Wis or Cha). It also loses any special quality that operates as a spell but is not a (Sp) ability, such as a unicorn's
magic circle against evil.