Cassiopeia Erda is a basic A-rank DPS. Even for an A-rank, there are better units. She is therefore a collector's Saint and has no use in PvP or PvE. She has some interesting features, such as AoE attacks, but her damage multipliers are very low.
Cassiopeia Erda
Base Stats
HP 10628
P.ATK 2810
C.ATK 0
P.DEF 462
C.DEF 353
Speed 131
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Skill Build
Priority: Skill 2 > Skill 3 > Skill 1
Skill 1 
Skill 2 
Skill 3 Min
1
4
4
Med
3
5
5
Best
5
5
5
Cassiopeia Erda skill level table assumes the character is at level 80, with the 8th sense unlocked and, if available, the Awakened Cloth activated.
Skill Descriptions
Skill 1
Black Spines
Deals 80% physical damage to 1 enemy.
Skill 2
Fan Matrix
Cassiopeia Erda waves her cloak and releases blade fans, dealing 90% physical damage to all enemies.
Skill 3
Iceflower
Each attack of Cassiopeia Erda increases her speed by 50 (up to 150)
Recommended Cosmos Build
These are recommended cosmos combinations. You can view all available cosmos and their stats on the Cosmos Guide page.
Solar
Lunar
Star
Legendary
