Lawful Evil Outsiders are just about the only thing she wouldn't try Diplomacy with instead, including Chaotic Evil Outsiders (who knows, Chaos could appeal to Chaos maybe) I can try it untrained--you roll it because you know the super secret circumstance bonus. If there's any way she could use Diplomacy or Bluff instead, of course, she'd prefer it Rystil Arden said:"Oh please. I know all your weaknesses intimately. Mordik here could kill you in a single stroke with his silver sword if he so chose," Aletheia's hatred for the creature remains readily apparent from her tone, far from her general kind and friendly demeanour towards, well just about everybody else, "Why don't you open the doorway? You know you want to open it anyway or you wouldn't make an offer. You're trying to win on both sides of the agreement, by gaining a boon for a task that secretly aids you. Oh, I know how your kind work."
(OOC: Yeah, she hates Lawful Evil outsiders a lot. Can you blame her?)

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.