Dark Ixion can be found in Thunder Plains and it has to be fought twice Equipments and stats shown in this video : • Dark Valefor (Dark Aeons Superboss) - Fina... Ribbon is pretty much mandatory for this fight since it can deal numerous of status effects such as confuse and sleep (unless you have 290 combined stats of luck and evasion for guaranteed dodge) Be careful of his Aerospark, it can remove several buffs including Auto-Life Check my other Final Fantasy X/X-2 optional boss encounter here : • Final Fantasy X/X-2 HD Remaster Optional S...