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Sundering Steel | Arknights: Endfield Weapon Guide & Leveling Stats | Endfield Builds

Sundering Steel Guide and Database - Arknights: Endfield

Sundering_Steel
Sundering Steel Sword - Arknights Endfield Weapon

Sundering Steel

5 Star Rarity
TypeSword
SourceAcquisition Center: Arsenal Exchange
Release2025

"A weapon equipped by Endfield operators to significantly boost their combat capabilities. One of the elite weaponry manufactured by Endfield for their operators. The sword features a seamless grip-and-guard hilt and stress-triggered energy storage mechanisms to enhance its damage potential."

Comprehensive guide for the Sundering Steel Sword in Arknights: Endfield. Learn where to get Sundering Steel (Acquisition Center: Arsenal Exchange) and its utility for your team.

Skill_Analysis

// Subsystem_Link: SWORD

Sword mechanics

Weapon Skill(s)

Ability
Neural_Drive: Active // Rank_Scaling_Available
Weapon Skill(s) scaling per rank for Sword

Weapon_Archive

Ref_ID: — — — — — // Intelligence_Entry

Access_Level

Restricted

I know who you are. I know where you came from. You were one of them. You must be. I see the forge fire in your eyes. You stood vigils over the smelting furnaces for years. You came to the south because you could no longer face the Aggeloid nightmares. But you feared of being called a deserter. That was why you changed your name and joined us as an arsenal engineer. You found this simpler life at Endfield worth living. You helped fellow Endfielders survive their battles. They were grateful and praised the weapons you designed. Your work was balanced and operated smoothly. Your designs incorporated years of actual combat experience. You read Endfield science and research and it probably made you think about things. If the Fort had these technologies, you might have stayed at that place. Despite your reputation as a cranky old man, the girl likes you a lot. You always had a story to tell, stories that her parents never talked about. Stories about heroes, how they lived, how they fought without a care of their lives, and how their sacrifices went unsung and unremembered. You even learned a thing or two from her, right? This seamless design feature ... would be an oddity at the place where you once served. This was why you hesitated when the girl asked you to teach her how to swing a sword. At first, you thought of your dashing, youthful years. Fencing skills would help the girl better protect herself. But your mind changed. The girl had the entire Endfield arsenal as well as loving parents to support her. She did not need to know about fencing. You then convinced yourself that the girl needed no instructions from a deserter and ex-butcher who broke his oaths. The old road had been abandoned for years. No one should take it anymore. It calls for no one, and needs none. Thus, you applied for divisional transfer. You wanted to leave the arsenal and force yourself back to field service — you believe you should be able to stomach the frontlines of Endfield Industries. Please do not look at me like I'm some sort of a Sarkaz Djall mind-floggers. And no. I wasn't using any mind-reading instruments. I do have a message for you: Supervisor Perlica will not oppose any decision you make, but please, don't make the girl sad.

Endfield_Database_Service // Security_Encrypted

More_Armaments_In_Database

Armory_Registry_Navigation

Asset_Class
Registered_Units
Polearm
Qty: 09
LevelAgility Boost [M]Physical DMG Boost [M]Combative: Anthem of CinderEfficiency
R-01Agility +16Physical DMG Dealt +4.44%ATK +5%. After the wielder deals a Physical Status, ATK +7.5% for 20s. Max stacks: 2. Duration of each stack is counted separately. Effect only triggers once every 0.1s.Efficiency: 11.11111111111111%
R-02Agility +28Physical DMG Dealt +8%ATK +6%. After the wielder deals a Physical Status, ATK +9% for 20s. Max stacks: 2. Duration of each stack is counted separately. Effect only triggers once every 0.1s.Efficiency: 22.22222222222222%
R-03Agility +41Physical DMG Dealt +11.56%ATK +7%. After the wielder deals a Physical Status, ATK +10.5% for 20s. Max stacks: 2. Duration of each stack is counted separately. Effect only triggers once every 0.1s.Efficiency: 33.33333333333333%
R-04Agility +54Physical DMG Dealt +15.11%ATK +8%. After the wielder deals a Physical Status, ATK +12% for 20s. Max stacks: 2. Duration of each stack is counted separately. Effect only triggers once every 0.1s.Efficiency: 44.44444444444444%
R-05Agility +67Physical DMG Dealt +18.67%ATK +9%. After the wielder deals a Physical Status, ATK +13.5% for 20s. Max stacks: 2. Duration of each stack is counted separately. Effect only triggers once every 0.1s.Efficiency: 55.55555555555556%
R-06Agility +80Physical DMG Dealt +22.22%ATK +10%. After the wielder deals a Physical Status, ATK +15% for 20s. Max stacks: 2. Duration of each stack is counted separately. Effect only triggers once every 0.1s.Efficiency: 66.66666666666666%
R-07Agility +92Physical DMG Dealt +25.78%ATK +11%. After the wielder deals a Physical Status, ATK +16.5% for 20s. Max stacks: 2. Duration of each stack is counted separately. Effect only triggers once every 0.1s.Efficiency: 77.77777777777779%
R-08Agility +105Physical DMG Dealt +29.33%ATK +12%. After the wielder deals a Physical Status, ATK +18% for 20s. Max stacks: 2. Duration of each stack is counted separately. Effect only triggers once every 0.1s.Efficiency: 88.88888888888889%
R-09Agility +124Physical DMG Dealt +34.67%ATK +14%. After the wielder deals a Physical Status, ATK +21% for 20s. Max stacks: 2. Duration of each stack is counted separately. Effect only triggers once every 0.1s.Efficiency: 100%

Data_Verification: Protocol_Endfield_312

Weapon Passive and Active Skills Scaling

Analyze how Sword skills improve with each rank. Our database provides exact values for combat bonuses and secondary effects for all Arknights: Endfield weapons.

Enhancement_Protocols

// Ascension_Requirements // Limit_Break

01
Elite I Ascension Requirement

Elite I

Limit: LVL 20

Required_Components // Upgrade_Materials
  • Cast Die
    x5
    Cast Die
  • Kalkonyx
    x3
    Kalkonyx
02
Elite II Ascension Requirement

Elite II

Limit: LVL 40

Required_Components // Upgrade_Materials
  • Cast Die
    x18
    Cast Die
03
Elite III Ascension Requirement

Elite III

Limit: LVL 60

Required_Components // Upgrade_Materials
  • Heavy Cast Die
    x27
    Heavy Cast Die
04
Elite IV Ascension Requirement

Elite IV

Limit: LVL 80

Required_Components // Upgrade_Materials
  • Heavy Cast Die
    x50
    Heavy Cast Die

Arknights: Endfield weapon upgrade guide. Elite promotion materials list, level cap requirements and limit break components for all rarity tiers.

Protocols_Verified // Archive_09

Sundering Steel Base and Max Stats

Weapon Scaling & Combat Analysis

// Attack Power Scaling // Level_Progression

Base_Atk_Value
44
Peak_Atk_Scaling
471
  • Weapon Level LV.01
    44ATK
    Stat Efficiency9.3%
  • Weapon Level LV.20
    126ATK
    Stat Efficiency26.8%
  • Weapon Level LV.40
    214ATK
    Stat Efficiency45.4%
  • Weapon Level LV.60
    301ATK
    Stat Efficiency63.9%
  • Weapon Level LV.80
    388ATK
    Stat Efficiency82.4%
  • Weapon Level LV.99
    471ATK
    Stat Efficiency100.0%

Data_Source: Endfield Character Database

Sundering Steel Potential Upgrades

Weapon Potentials

// Tactical_Upgrade_Sequence // Asset_Calibration

  • 5
    Weapon Potential Rank 5
    Rank 05
Cohesive Traction
JET
Mountain Bearer
Valiant
Chimeric Justice
OBJ Razorhorn
Aggeloslayer
Opero 77
Pathfinder's Beacon
Great Sword
Qty: 12
Exemplar
Former Finery
Khravengger
Sundered Prince
Thunderberge
Ancient Canal
Finishing Call
OBJ Heavy Burden
Seeker of Dark Lung
Industry 0.1
Quencher
Darhoff 7
Handcannon
Qty: 10
Artzy Tyrannical
Clannibal
Navigator
Wedge
OBJ Velocitous
Opus: The Living
Rational Farewell
Howling Guard
Long Road
Peco 5
Sword
Qty: 17
Eminent Repute
Forgeborn Scathe
Grand Vision
Never Rest
Rapid Ascent
Thermite Cutter
Umbral Torch
White Night Nova
Aspirant
Finchaser 3.0
Fortmaker
OBJ Edge of Lightness
Sundering Steel
Twelve Questions
Contingent Measure
Wave Tide
Tarr 11
Arts Unit
Qty: 14
Chivalric Virtues
Delivery Guaranteed
Detonation Unit
Dreams of the Starry Beach
Oblivion
Opus: Etch Figure
Freedom to Proselytize
Monaihe
OBJ Arts Identifier
Stanza of Memorials
Wild Wanderer
Fluorescent Roc
Hypernova Auto
Jiminy 12
Registry_v4.0 // Database_Sync_Active

Arknights: Endfield Weapons Database

Complete armory directory including Swords, Great Swords, Polearms, Handcannons, and Arts Units.

Auronyx
x5
Auronyx
Umbronyx
x5
Umbronyx
Wulingstone
x8
Wulingstone
  • D96 Steel Sample 4
    x36
    D96 Steel Sample 4
  • Potential 5

    Skill Combative: Anthem of Cinder improved.

    Arknights Endfield weapon potential enhancement bonuses and stats.

    CalibrationActive_Mod
    Endfield Armory Archive // Calibration_Data