★★★★

Claymore

Release version: 1.0
Maximum level: 90
Base ATK: 510
CRIT Rate: 27.6%

Genshin Impact Weapon

Serpent Spine

A rare weapon whose origin is the ancient ocean. One can hear the sound of the ageless waves as one swings it.

At a glance

Serpent Spine is a 4-star Claymore released in Version 1.0. At Level 90, it has 510 Base ATK and 27.6% CRIT Rate. Its Wavesplitter passive is documented from R1 to R5.

Rarity: 4 stars
Type: Claymore
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: 510
CRIT Rate: 27.6%

Passive effect

Wavesplitter

Refinement

Every 4s a character is on the field, they will deal 6% more DMG and take 3% more DMG. This effect has a maximum of 5 stacks and will not be reset if the character leaves the field, but will be reduced by 1 stack when the character takes DMG.

Progression

Ascension materials

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

Mora for ascensions: 150,000

Whopperflower Nectar
× 10
Shimmering Nectar
× 15
Energy Nectar
× 18
Fragile Bone Shard
× 15
Sturdy Bone Shard
× 18
Fossilized Bone Shard
× 27
Grain of Aerosiderite
× 3
Piece of Aerosiderite
× 9
Bit of Aerosiderite
× 9
Chunk of Aerosiderite
× 4

Names source: Lunaris

Choosing your equipment

Which characters can use it?

These documented uses explain the conditions behind each choice. They are neither an exhaustive list nor a current-patch damage ranking.

Diluc

Why choose it: CRIT Rate and the damage bonus complement Diluc’s Vaporize or Melt damage.
Conditions: Maintain stacks by dodging or using a shield. Taking damage removes stacks; Burgeon self-damage makes this harder.
Tradeoffs: It requires the paid Battle Pass and stack management. Bennett can offset its lower base ATK.

KQM guide 3.6. Qualitative uses, not a current-patch ranking.

Source: KQM guide

Consulted on Oct 6, 2026

Compare with your own equipment

Beidou

Why choose it: CRIT Rate and the damage bonus support Beidou’s Burst damage.
Conditions: Build stacks before casting her Burst where the game mode allows it. Retain enough Energy Recharge for the rotation.
Tradeoffs: Its value depends on maintained stacks and team ATK buffs; displayed stats alone cannot settle the comparison.

KQM guide 5.8. Qualitative uses, not a current-patch ranking.

Source: KQM guide

Consulted on Oct 6, 2026

Compare with your own equipment

Razor

Why choose it: CRIT Rate and the damage bonus can support Razor’s Physical and Electro damage.
Conditions: A shield or dodging helps maintain stacks while he stays on field.
Tradeoffs: Taking damage lowers the bonus. Check your artifact balance of ATK, CRIT and damage bonuses before choosing.

KQM guide 4.1. Qualitative uses, not a current-patch ranking.

Source: KQM guide

Consulted on Oct 6, 2026

Compare with your own equipment

Progression

Stats by level

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

Level	Base ATK	CRIT Rate
1	42	6%
20	109	10.6%
40	205	15.4%
50	266	17.9%
60	327	20.3%
70	388	22.7%
80	449	25.1%
90	510	27.6%

Wavesplitter

R1–R5 refinement effects

Every refinement is visible together for direct comparison.

R1

R2

Every 4s a character is on the field, they will deal 7% more DMG and take 2.7% more DMG. This effect has a maximum of 5 stacks and will not be reset if the character leaves the field, but will be reduced by 1 stack when the character takes DMG.

R3

Every 4s a character is on the field, they will deal 8% more DMG and take 2.4% more DMG. This effect has a maximum of 5 stacks and will not be reset if the character leaves the field, but will be reduced by 1 stack when the character takes DMG.

R4

Every 4s a character is on the field, they will deal 9% more DMG and take 2.2% more DMG. This effect has a maximum of 5 stacks and will not be reset if the character leaves the field, but will be reduced by 1 stack when the character takes DMG.

R5

Every 4s a character is on the field, they will deal 10% more DMG and take 2% more DMG. This effect has a maximum of 5 stacks and will not be reset if the character leaves the field, but will be reduced by 1 stack when the character takes DMG.

Acquisition method

How to get this weapon

Available

Acquisition method: Gnostic Hymn — BP Bounty weapon selection at level 30
Availability: Selectable from the paid Battle Pass BP Bounty after reaching BP level 30.

Unlock the paid Gnostic Hymn, reach Battle Pass level 30, then choose Serpent Spine from the BP Bounty. To refine it, choose another copy in a later Battle Pass period. Check the current in-game reward selection before buying the pass.

Official source: HoYoWiki — Serpent Spine acquisition

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