Aeonic Weapons are the "ultimate" in Final Fantasy XI weapons, though individually their Mythic, Empyrean, or Relic counterpart may be stronger. They are "ultimate" because they provide the only way to close "Ultimate Skillchains".
Players may obtain these "ultimate skillchains" through the Martial Mastery quest, but have a limit (max of 15 spendable points) based upon points spent via the merit system. Using one of these Aeonic Weapons grants the associated "ultimate skillchain / weaponskill" without spending any merit points or taking up the limit for the Martial Mastery weaponskills.
- Complete the Rhapsodies of Vana'diel missions and gain the Scintillating Rhapsody.
- Video: How to farm 50k Escha beads quick for your Aeonic Key item
- Visit Temprix in Reisenjima via Ethereal Ingress #8.