Olassyel

Olassyel is a female dragonborn who wears flowing robes. She was head of the Aeon Priesthood before she was killed by Luke during the battle that ensued after the Second Trial.

Let's be clear, Olassyel was the one who started the battle after the Second Trial. With her combined forces, consisting of mercenaries and her Aeon Zealots, she attempted to take control of Fallhaven. Her forces were rebuffed by a Bromilyn, Mithon, and Azalea reinforced Royal Guard, but her plot to kill King Tarun succeeded, thanks to Horgras's betrayal.

Her motivation for these actions is unknown.

Olassyel and Tarun have a history; together, they traveled to the Halls of Sopharanatoth 200 years ago, seeking a powerful artifact that could end the last incursion in this world.