Sol & Dark Bahamut: Weakness, Battle Decisions & Recovery
Dark for Sol; Light for Dark Bahamut is the useful damage plan for Chapter 8 party battle and later Rain solo encounter. Inspect Rain separately before the finale; the later solo fight cannot use party healing.
Quick answer
Dark for Sol; Light for Dark Bahamut is the useful damage plan for Chapter 8 party battle and later Rain solo encounter. Inspect Rain separately before the finale; the later solo fight cannot use party healing.
On this page
Read this encounter
Sakura or Archwitch Fina can cover Dark in the group battle. The Demon’s Ring can add Dark to eligible non-elemental physical attacks if obtained; inspect the actual command. Sol reacts to widespread buffs, so apply the support needed rather than automatically filling every status slot.
Answer the dangerous action
Dark Bahamut requires the opposite element and brings a Megaflare countdown. Time Unwound increases action pressure and Ultima threatens heavy damage; preserve recovery when the warning cannot be broken. Check selected targets rather than treating every enemy name as Sol.
After the battle
After the group victory comes Chaotic Darkness. Rain’s later duel needs a usable Dark source and recovery on Rain himself; the previous group’s stats and actions do not define that duel.
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.