Ixion is the third Aeon that Yuna can summon. She receives it after the team completes the Djose Temple and Djose Cloister of Trials. Final Fantasy X is Ixion’s first appearance as a summon in a Final Fantasy game.
Overdrive: Thor’s Hammer
Ixion can do regular attacks as well as an attack called Aerospark. In addition to doing regular damage, Aerospark can also remove helpful status effects from the enemy including Haste, Protect, Reflect, Regen and Shell. Thor’s Hammer, Ixion’s Overdrive ability, is a lightning-based attack, so be sure that the enemy you are fighting is not capable of resisting or absorbing lightning magic.