![[Opera Ghost: Rovina] Waltz](/monsterhead_70001JuYuanMeiYing_Dark_L.avif "[Opera Ghost: Rovina] Waltz")
Type: Raid
Weak: Ignis🔥, Ventus🌪️
Resist: None⬜
Stats
HP: 4,130,000
HP Bar: 20
Max Score: 720,000
Score: 200000 + (340000 - time_in_seconds * 600) + 180000
ATK: 1,946
DEF: 500 (50%)
Hit Rate: 100%
Attack Speed: 100%
Aqua DMG: 100%
Ignis DMG: 100%
Terra DMG: 100%
Ventus DMG: 100%
Lux DMG: 100%
Umbra DMG: 100%
Mark DMG Taken: 100%
Resilience: 1,376,529
Aqua RES: 570
Ignis RES: 570
Terra RES: 570
Ventus RES: 570
Lux RES: 570
Umbra RES: 570
Book stats
HP: 61,950
ATK: 973
DEF: 500 (50%)
Hit Rate: 100%
Attack Speed: 100%
Aqua DMG: 100%
Ignis DMG: 100%
Terra DMG: 100%
Ventus DMG: 100%
Lux DMG: 100%
Umbra DMG: 100%
Mark DMG Taken: 100%
Aqua RES: 570
Ignis RES: 570
Terra RES: 570
Ventus RES: 570
Lux RES: 570
Umbra RES: 570
Waltz: Chorus
The boss gains an Echo Codex that takes much less Auto ATK DMG. When the boss casts certain skills, the Echo Codex casts similar skills.
Waltz: Echo
The boss gains a Record Codex that takes much less Auto ATK DMG and revives after some time. When the boss casts certain skills, the Record Codex records similar skills and casts them later.
Waltz: Malice Shroud
After a friendly unit deals damage to the boss a certain number of times, it increases the damage the boss takes for a short period.
Codex's Protection
The boss initially has high DMG Resistance. Each Echo Codex or Record Codex removed lowers the boss's DMG Resistance.
Requiem Aria
The boss summons multiple Echo Codices to continuously channel energy. The fewer Echo Codices remaining when the channeling ends, the weaker the attacks from the boss.
Nightmare Finale
The boss summons the Record Codices on the battlefield and absorbs them. The more Record Codices absorbed, the stronger the boss's attacks will become.