"So why the change of heart on Jirlai's part? Is he now willing to work for some promised position of personal power, or does he intend to betray the githyanki? Either way, there may be something there that we can exploit."Dalamar said:"He's psionic. There's residue enough to show that."

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