Banten

Trystin's old best friend, who is also protector and companion. He is admittedly too honest and just, a foil to Trystin. He catches Trystin wiping Ali and possibly has to bring the punishment. It is he who is mostly to blame for the cycle. He has peer ties to royalty and is mainly responsible for making sure no harm comes to Trystin. He has sober eyes, stead and calm, has the look of a young guardian, thrown into the fire, metal tested and true.

He is called Eyes-of-War (this is a pull from Lyze of Kiel, from Guardians of Ga'Hoole)

Early Life
Part of Banten's early life was meeting Ephyra, very early in his life (visibly age 6), which is considered quite young. She was already much larger than him, not what people thought at all, but steady and protective which turned out to be him in later life.

Grey
Responsible for waking up Trystin, his face is always shielded due to the amount of dust in the area. He introduces himself as Pennant, ironically mistaken at first for Penance, but acknowledges that is not his name. He is defined by his calm, caring nature, and seems to be responsible for naming Trystin 'Eelion'. It is implied that Trystin is one of his charges

Black
In Black, Trystin cries and begs, tears down his face, for his memory and Ali's to be taken. It's highly illegal but Banten feels responsibility for him, old friends and guardian spirits, and does so. Arosha is also ripped form him.

Relationships
Banten has always been in service to the royal family, a steward and companion to everyone. He is the brother protector.