Eon was a dark-skinned, humanoid Jedi that fought under Jedi Master Ki-Adi-Mundi during the Clone Wars. In one of the many battles of the Outer Rim Sieges, Eon followed Ki-Adi-Mundi into battle alongside Jedi Rivi-Anu and Aayla Secura. During the battle, Eon and the Jedi managed to push the enemy forces back, but the Separatist's managed to sabotage a Venator-class command cruiser. The severely damaged warship threatened to crash into the middle of the battlefield placing both the Republic and Separatist forces at risk.

Eon and the Republic forces attempted to fall back but the warship was falling too fast. Wounded in the middle of the battlefield, Jedi Rivi-Anu, sacrificed herself to give Eon, the Jedi, and the clonetroopers a chance to escape. In an impressive display of the Force for a Jedi as young and inexperienced as Rivi-Anu, she managed to slow the descent of the warship. Eon was able to escape just before the ship exploded killing Rivi-Anu. Through her sacrifice, Eon and the other Jedi survived to fight another day.