Pseudodemon — Stupor Mundi

As one exiled from both the world of their ancestors and the world they were born into, pseudodemons carry a palpable sense of awe and dread wherever they go. You gain Frightful Presence, except it is never more than Shaken, never stacks with any source regardless of any abilities which might say otherwise, and it only affects those with fewer HD than you. You also have a +2 racial bonus to Intimidate and Diplomacy.

None of these bonuses apply to fae, and against true demons, the increased effective HD for purposes of the Terror is defensive-only. Against the fae, you take a -2 penalty to Bluff, Intimidate, and Diplomacy instead of gaining a bonus.