Osysa

Osysa is a gynosphinx residing beneath the Slayer's Take guildhall in Vasselheim. As an NPC, she is played by Matthew Mercer.

Background
Osysa has been the keeper of the temple to Ioun within the cavern beneath the guildhall for hundreds of years, scrying via a heart glass in the altar with which Ioun extends her vision to "watch the world." This allows her to locate the guild's quarry, determine the viability of contracts, and watch over her mate, Kamaljiori. Her clairvoyance pierces through planes, becoming easier to block the farther it extends. While apparently possible, she states that a prior attempt to peer into the Abyss was a "dire mistake."

Although gynosphinxes are almost always neutral, Osysa appears to be lawful good.