★★★★

Claymore

Release version: 1.0
Maximum level: 90
Base ATK: 565
ATK: 27.6%

Genshin Impact Weapon

Prototype Archaic

An ancient greatsword discovered in the Blackcliff Forge. It swings with such an immense force that one feels it could cut straight through reality itself.

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At a glance

Prototype Archaic is a 4-star Claymore released in Version 1.0. At Level 90, it has 565 Base ATK and 27.6% ATK. Its Crush 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: 565
ATK: 27.6%

Passive effect

Crush

Refinement

On hit, Normal or Charged Attacks have a 50% chance to deal an additional 240% ATK DMG to opponents within a small AoE. Can only occur once every 15s.

Progression

Ascension materials

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

Mora for ascensions: 150,000

Damaged Mask
× 10
Stained Mask
× 15
Ominous Mask
× 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: A forgeable ATK option for Vaporize or Melt Diluc when your weapon collection is limited.
Conditions: Its Physical proc uses Normal or Charged Attacks; it is not a permanent increase to Pyro damage.
Tradeoffs: Compare weapons you already own before spending more billets on refinements; its passive does not strengthen the entire kit.

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

Source: KQM guide

Consulted on Oct 6, 2026

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Beidou

Why choose it: A forgeable ATK option for a transitional Beidou build.
Conditions: Meet Energy Recharge requirements first. Its Physical hit does not replace her Burst’s Electro damage.
Tradeoffs: The historical extended guide describes this use; the newer quick guide favors other options. This choice primarily offers accessibility.

KQM guide 3.1; historical extended guide. Qualitative uses, not a current-patch ranking.

Source: KQM guide

Consulted on Oct 6, 2026

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Razor

Why choose it: A forgeable option for Physical Razor; its Physical proc benefits from Physical damage bonuses.
Conditions: Use Normal Attacks to trigger the passive and account for its cooldown.
Tradeoffs: Serpent Spine’s CRIT Rate and damage bonus offer a different balance if you own it and maintain its stacks.

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

Source: KQM guide

Consulted on Oct 6, 2026

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Progression

Stats by level

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

Level	Base ATK	ATK
1	44	6%
20	119	10.6%
40	226	15.4%
50	293	17.9%
60	361	20.3%
70	429	22.7%
80	497	25.1%
90	565	27.6%

Crush

R1–R5 refinement effects

Every refinement is visible together for direct comparison.

R1

On hit, Normal or Charged Attacks have a 50% chance to deal an additional 240% ATK DMG to opponents within a small AoE. Can only occur once every 15s.

R2

On hit, Normal or Charged Attacks have a 50% chance to deal an additional 300% ATK DMG to opponents within a small AoE. Can only occur once every 15s.

R3

On hit, Normal or Charged Attacks have a 50% chance to deal an additional 360% ATK DMG to opponents within a small AoE. Can only occur once every 15s.

R4

On hit, Normal or Charged Attacks have a 50% chance to deal an additional 420% ATK DMG to opponents within a small AoE. Can only occur once every 15s.

R5

On hit, Normal or Charged Attacks have a 50% chance to deal an additional 480% ATK DMG to opponents within a small AoE. Can only occur once every 15s.

Acquisition method

How to get this weapon

Available

Acquisition method: Forging — Northlander Claymore Billet
Availability: Forgeable when you have the required billet and ores.

Forge one copy with 1 Northlander Claymore Billet, 50 Crystal Chunks, 50 White Iron Chunks, and 500 Mora. Each additional copy for refinement requires the same forging recipe. This forging cost is separate from weapon ascension costs.

Official source: HoYoWiki — Prototype Archaic forging recipe

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