Orb of Elerion

The Orb (or Heart) of Elerion is the sum of all Morghrim’s powers. It appears in Ultima VII Part Two.

Description
Morghrim created it himself, and it’s spiritually connected to him. His thoughts, emotions, perceptions and soul are all tied to it. It basically IS his heart. If destroyed, Morghrim would die. Without it, he’s just a dead man walking — he cannot heal the land or anything. Also, if anyone else bears the orb, they’re virtually impervious to all forms of harm. They will be almost as powerful as the Forest Master, while the Forest Master himself would be weakened.

The orb was stolen by Draygan some time before the time of the Avatar's arrival, and it had made him practically invulnerable. Once the Avatar returned the Orb to Morghrim after taking care of Draygan, it restored him back the powers to protect the forest.