Star Rail Calculator · Materials

Key of Knowledge 3★ material

Where to get it

A Trace material (Calyx). Farm the Calyx (Crimson) domains with Trailblaze Power.

Characters who need it (6 characters · full build)
CharacterElementQty
ArgentiPhysical72
HimekoFire72
Jing YuanLightning72
HertaIce57
QingqueQuantum57
ServalLightning57
FAQ
Where do I get Key of Knowledge?
A Trace material (Calyx). Farm the Calyx (Crimson) domains with Trailblaze Power.
How many characters need Key of Knowledge?
6 characters use it; the biggest demand is Argenti (72).

To calculate your characters, use the Star Rail Calculator.

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