Opera Ghost: Rovina

Echo

The boss gains an Echo Codex that dissipates after taking a certain number of hits. When the boss casts certain skills, the Echo Codex casts similar skills.

Records

The boss gains a Record Codex that dissipates after taking a certain number of hits but revives after some time. When the boss casts certain skills, the Record Codex records similar skills and cast them later.

Codex's Protection

The boss initially has high DMG Resistance. Each Echo Codex or Record Codex removed lowers the boss's DMG Resistance.

Fear Resonance

Each time an ally deals DMG to the boss, it increases the DMG the boss takes for a short period.

Abyssal Lament

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 Symphony

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.