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Arknights: Endfield

Rock Solid Stage 3 Guide for Version 1.0

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Umbral Monument: Stage 1 | Stage 2 | Stage 3

Arknights Endfield Rock Solid Stage 3 Guide for Version 1.0

Rock Solid is the third stage in Inorganic Construct in Arknights: Endfield 1.0. See all info about Stage 3 of the Inorganic Construct series, best teams, recommended characters, how to beat, and all rewards in this guide!

Inorganic Construct Stages
Stage 1 Stage 2 Stage 3

Rock Solid Stage 3 Info

Rock Solid Stage 3 Details

Recommended Operator Lv.
Normal Mode
Lv. 60
Agony Mode
Lv. 90
The giant machine wreckage in the distance heralded the great events of the past. Nearby, disassembled entities began to coalesce, creating newborn entities that belched with earth-rending howls. The land began to tremble as the Aggeloi slammed into the ground and waded their ponderous steps.

Rock Solid Stage 3 Mechanics

Normal Enemies are stronger.
Agony Operator stamina is greatly reduced. Enemies are stronger and immune to Stagger. The Walking Chrosopolis's weakpoint exposure ends more quickly. The Walking Chrosopolis gains a massive ATK buff if its weakpoint is not destroyed when exposure ends. Tacticals and consumables cannot be used.

Agony Mode adds an effect on top of the Normal Mode mechanics.

Rock Solid Stage 3 Enemy Details

Enemies Physical Heat Cryo Electric Nature
Endfield - Walking Chrysopolis Walking Chrysopolis
C C C D C

List of All Enemies

Part of the Inorganic Construct Series

Inorganic Construct
Arknights Endfield - Inorganic Construct
Release Date Feb. 22, 2026

Rock Solid Stage 3 Best Teams and Characters

Avywenna Electric Team

Main DPS SP Gen. Support Support
Endfield Avywenna Avywenna Endfield Arclight Arclight Endfield Perlica Perlica Endfield Gilberta Gilberta

The ability to control when to unleash her damage gives Avywenna an advantage in the fight. Her Thunderlances have a long duration of 30 seconds (50 seconds at Potential 2), which can be retrieved via Battle Skill once the weakpoint is exposed.

This trivializes the Walking Chrysopolis' weakpoint phase, as Avywenna can quickly retrieve her Thunderlances to destroy the weakpoint almost immediately.

Last Rite Best Team Comps

Yvonne Cryo Team

Main DPS Support Support Support
Endfield Yvonne Yvonne Endfield Last Rite Last Rite Endfield Xaihi Xaihi Endfield Fluorite Fluorite

Yvonne's ranged attacks allow her to DPS safely outside of the Walking Chrysopolis' range, and can hit them in midair during its jump attack. This makes the fight significantly easier, as the Walking Chrysopolis have various attacks that can be difficult to avoid when fighting in melee.

Yvonne Best Team Comps

Laevatain Hypercarry Team

Main DPS SP Gen. Support Sustain
Endfield Laevatain Laevatain Endfield Akekuri Akekuri Endfield Wulfgard Wulfgard Endfield Ardelia Ardelia

Laevatain can be used to destroy the weakpoint quickly, either with her Ultimate's basic attacks or her Battle Skill into Combo Skill burst combo. Her flexibility in rotations allows players a degree of control in the fight, enabling them to unleash strong bursts both in and out of the weakpoint phase.

Laevatain Best Team Comps

How to Beat Rock Solid Stage 3

  1. Destroy Its Weakpoint Immediately
  2. Interrupt Whenever Possible

Destroy Its Weakpoint Immediately

Walking Chrysopolis can put up shields that receive reduced damage from the front and side, but will reveal the weakpoint on its back. This occurs after one of its jump attacks.

Destroy this weakpoint as soon as possible to Stagger the Walking Chrosopolis and disable their attack buff. It is best to unleash the burst combos, such as Avywenna's Battle Skill, once the weakpoint appears to dispatch it quickly.

Interrupt Whenever Possible

The Walking Chrysopolis has short interrupt windows, and it is recommended to cast skills as soon as they appear to disrupt its jump attack. This creates a short window of opportunity for the team to deal damage, heal, or restore SP via Final Strike during the fight.

Rock Solid Stage 3 Rewards

Total Item Rewards

Mode Rewards
Normal
T-Creds T-Creds x24,000
Mark of Perseverance Mark of Perseverance x1
Agony
T-Creds T-Creds x24,000
Mark of Perseverance Mark of Perseverance x1

Arknights: Endfield Related Guides

Arknights Endfield - Umbral Monument Partial Banner
Umbral Monument Endgame Guide

Current Series and Stages

Those Forsaken by the Land Series
Stage 1 Survive the Gas
Stage 2 Unorthodox Tactics
Stage 3 Ballista and Axe
Inorganic Construct Series
Stage 1 Bolts and Shadows
Stage 2 Rampaging Shields
Stage 3 Rock Solid

All Umbral Monument Series

Those Forsaken by the Land Inorganic Construct

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    Guide Index