Amascut

Amascut, "The Devourer", is the god of destruction. Amascut is the child of Elidnis and Tumeken. She appears in the Icthlarin's Little Helper quest.

Her Plan
Amascut is trying to capture the soul of Klenter, a dead high-priest, before Icthlarin can. She uses the player in the quest Icthlarin's Little Helper by getting you to steal a canopic jar from the pyramid. However, the player realizes that was a bad idea, and you return it.

Amascut then re-hypnotizes the player and has them plant one of her sacred symbols in one of the sarcophagi so she can appear and reappear inside the temple as much as she wants. However, the player remembers this deed and goes to warn the priests who are currently in the pyramid.

After you foil her plot after plot, she goes for broke and possesses one of the priests and has them kill the player. But this fails (hopefully, anyways) and she goes back to hiding.

She is also discussed shortly in the quest Contact!.