Temporarily guarded the last remaining dinosaur eggs in its body. As Daizyujin's power was tied directly to the survival of the dinosaurs, King Brachion was directly targeted by Bandora during the finale because of this.
Never took on an important role in any season it appeared in.
Returned to heaven with the other Guardian Beasts after Bandora was defeated, as its task was completed.
Its fate was left ambiguous. It simply stopped appearing after its battle against Dischordia.