Cool Steel

★★★

Sword

Release version: 1.0
Maximum level: 90
Base ATK: 401
ATK: 35.2%

Genshin Impact Weapon

Cool Steel

A reliable steel-forged weapon that serves as a testament to the great adventures of its old master.

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At a glance

Cool Steel is a 3-star Sword released in Version 1.0. At Level 90, it has 401 Base ATK and 35.2% ATK. Its Bane of Water and Ice passive is documented from R1 to R5.

Rarity: 3 stars
Type: Sword
Maximum level: 90
Release version: 1.0

Lunaris data: version 7.1.0 (latest version reported by the source at import: 7.1.0), generated on September 22, 2026.This is the catalog generation date. Build guides separately state when their recommendations were checked.

Progression

Stats at level 90

Level

190

Base ATK: 401
ATK: 35.2%

Passive effect

Bane of Water and Ice

Refinement

Increases DMG against opponents affected by Hydro or Cryo by 12%.

Progression

Ascension materials

Total ascension cost. Level-up EXP and Mora, and extra copies for refinement, are not included.

Mora for ascensions: 105,000

Firm Arrowhead
× 6
Sharp Arrowhead
× 10
Weathered Arrowhead
× 12
Heavy Horn
× 10
Black Bronze Horn
× 12
Black Crystal Horn
× 18
Tile of Decarabian's Tower
× 2
Debris of Decarabian's City
× 6
Fragment of Decarabian's Epic
× 6
Scattered Piece of Decarabian's Dream
× 3

Names source: Lunaris

Progression

Stats by level

Stored values at the main progression milestones from level 1 to 90.

Level	Base ATK	ATK
1	39	7.7%
20	94	13.5%
40	169	19.7%
50	216	22.8%
60	263	25.9%
70	309	29%
80	355	32.1%
90	401	35.2%

Bane of Water and Ice

R1–R5 refinement effects

Every refinement is visible together for direct comparison.

R1

Increases DMG against opponents affected by Hydro or Cryo by 12%.

R2

Increases DMG against opponents affected by Hydro or Cryo by 15%.

R3

Increases DMG against opponents affected by Hydro or Cryo by 18%.

R4

Increases DMG against opponents affected by Hydro or Cryo by 21%.

R5

Increases DMG against opponents affected by Hydro or Cryo by 24%.

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