A floating skull
A talking floating skull.
“Not really much to say about me… I’m just a floating skull that talks.” – Bandren
Bandren is a mimir, a magical item containing knowledge and lore that is (somewhat) sentient. It has been passed from owner to owner, never really staying with anyone for very long. It was only in Sargan the Sorcerer’s White Tower for twenty years, and has rarely been outside since Sargan acquired it.