Sunlight Vulnerability (Ex): Exposing a celestial stag to direct sunlight disorients it: It can take only a single move action or attack action and is destroyed utterly in the next round if it cannot escape.
Hmm, I thought of the harassment they do as more like Intimidation, but I can see Bluff. Or we could add Bluff, go with 2 ranks for everything, and take Persuasive insteand of SF (Intimidate).
They're torturers, so I get more of an Intimidate vibe from them as well. I don't think we should invest two feats into social skills, though. Multiattack I would favor.
Perhaps light spells and searing light should deal lethal damage and deal damage as if it were undead?