Sertazi

Description
He lost all of his companions on a failed quest, which landed him in the Astral Plane for life. He can use a special amulet to leave the Astral Plane once in a while. He always has lecrema crystals with the Revivify spell in them because of the trauma of loosing his teammates.

How We Met Him
We met him when we went into Aries' office within the Astral Plane, where he hangs out "working".