Phantom: Rocksteady Guardian
Wuthering Waves hasn't published a danger class (Calamity/Overlord/Elite) for this echo in the official data we have — no guessing, no made-up label.
Echo Skill
Summon a Dwarf Cassowary that tracks and attacks the enemy, dealing 38.40% Physical DMG 3 time(s). Cooldown: 8s
Cooldown: 12s
Where to Farm
Dropped by: Phantom: Rocksteady Guardian
Sonata sets (3)
Frosty Resolve
Frosty Resolve2-PieceResonance Skill DMG + 12%
5-PieceCasting Resonance Skill grants 22.5% Glacio DMG Bonus for 15s and casting Resonance Liberation increases Resonance Skill DMG by 18%, lasting for 5s. This effect stacks up to 2 times.
Frosty Resolve →Celestial Light
Celestial Light2-PieceSpectro DMG + 10%.
5-PieceSpectro DMG + 30% for 15s after releasing Intro Skill.
Celestial Light →Rejuvenating Glow
Rejuvenating Glow2-PieceHealing Bonus + 10%.
5-PieceIncreases the ATK of all party members by 15% for 30s upon healing allies.
Rejuvenating Glow →More Spectro echoes
Echoes→
Echo sets→
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