Emperor Sosa / Emperor of Zoldaad: Weakness, Battle Decisions & Recovery
Water is the useful damage plan for Chapter 4 throne room. The Dungeon Key does not open the throne room.
Quick answer
Water is the useful damage plan for Chapter 4 throne room. The Dungeon Key does not open the throne room.
On this page
Read this encounter
After rescuing Shera, speak to the upper-floor captain for the separate Throne Room Key. Nichol provides Water; the Wraith Praetorians also share that weakness. Inspect whether your Water command is single-target or multi-target before expecting it to control all guards.
Answer the dangerous action
Reduce guard pressure but keep advancing the emperor’s gauge because more can be summoned. Poison and Blind need their own cures. Hell’s Pillar is the Fire warning: use a reachable break or keep magic protection and immediate healing available.
After the battle
The emperor’s defeat does not immediately finish the airship unlock. Continue the roof, Wild Rose and Enterprise pursuit objectives through the Evan/Lazarov sequence.
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.