Ultima Weapon: Weakness, Battle Decisions & Recovery
Match its current mode is the useful damage plan for post-story Ardra Crater. The first Wind/Water window is not a permanent weakness.
Quick answer
Match its current mode is the useful damage plan for post-story Ardra Crater. The first Wind/Water window is not a permanent weakness.
On this page
Read this encounter
Load the cleared-game save and follow the airship scene to the southeastern crater. Mode pairs are Infernus: Wind/Water; Keraunos: Ice/Earth; Cocytus: Fire/Light; Nemea: Lightning/Dark. Inspect each transition rather than spending MP on yesterday’s queue.
Answer the dangerous action
Reserve a reachable break for Ultima Beam, otherwise protect and recover. A published defensive setup combines Sakura’s Eternal Veil with Fina’s healing and Entrust to supply Limit gauge; it requires those learned skills and does not exist for every party automatically. Identify missing coverage or a disabled support after a loss, then change that part of the formation.
After the battle
This optional crater victory is distinct from story completion and Omega’s arena duel. Keep its trophy entry separate and confirm the actual result.
Check command types and Stagger · All battle guides
Sources and verification
Reviewed 1 November 2026. This guide compares published references. Independent gameplay results and current-patch timing are not claimed; source-reported conflicts remain explicit.