Arknights Endfield Best Gear Sets for 1.4: AIC Fieldwork, Rift Trekker and Wuling Farming

Version 1.4, Homecoming, does more than add Arcane and Liino — it raises the gear ceiling for endgame players. Two Tier 5 gear sets, AIC Fieldwork and Rift Trekker, are now the best-in-slot targets worth chasing, and both are tied directly to the expanded Wuling exploration content. If you have been pushing past the mid-game and want your operators to actually clear the hardest Wuling zones, this guide breaks down what each set does, who should wear it, and — most importantly — how to farm the blueprints and materials without burning out your factory.

How the Gear System Works (Quick Refresher)

Before diving into the Tier 5 sets, it helps to lock down the fundamentals, because the farming method depends entirely on how gear is obtained.

Slots, Set Bonuses & Tiers

Every operator equips four gear pieces: one Armor, one pair of Gloves, and two Kits. Equipping three pieces from the same set activates the set bonus — the single biggest multiplier on your build. You do not need all four; a common best practice is a 3-piece set plus one offset piece for a stronger substat.

Gear is tiered by quality and region. Lower tiers (AIC Light/Heavy, the MSGR and Mordvolt sets) unlock from Authority Level rewards. Mid tiers (Aburrey's Legacy, Catastrophe) follow. The Tier 3 Wuling sets — Bonekrusha, Eternal Xiranite, Frontiers, Hot Work, Tide Surge, Type 50 Yinglung, Pulser Labs, MI Security, Swordmancer, Æthertech, and LYNX — are where gold-quality crafting begins. Tier 5 sets (AIC Fieldwork and Rift Trekker) sit at the top of that ladder and are the focus of this guide.

Where Blueprints Come From

• Authority Levels unlock blue-quality blueprints (decent, but not best-in-slot) up to level 39.

• Gear Template Crates, scattered across the map (especially in Wuling), contain gold-quality blueprints.

• Stock Redistribution in Wuling lets you buy additional gear blueprints once the system is upgraded a few times.

Crafting itself happens in the Gear Assembly menu using Components and Stock Bills. Higher tiers demand regional currencies — Tier 3+ gear in Wuling costs 8,000 Wuling Stock Bills and 50 Xiranite Components per piece at maximum level.

Artificing — Pushing Gold Gear Further

Artificing (gear refinement) is unlocked through the Gear Artificing mission in Wuling City. It lets you raise the fixed stats of any gold-quality gear. Each attempt consumes one gold gear plus a matching regional Gear Artificing Catalyst (currently the Wuling Artificing Catalyst, bought via stock redistribution). Each stat can be improved up to 3 times, for a maximum of 9 artificing levels per piece. A "Good Match" material raises success rate, and failed attempts build Artificing Progress that eventually guarantees a success — so progress is never wasted.

AIC Fieldwork — The Universal Tier 5 Power Set

AIC Fieldwork is the standout offensive Tier 5 set of Version 1.4. Its 3-piece effect is aggressively universal, which is why it is being called a near-default best-in-slot for damage dealers who also want to survive.

Set Effect & Piece Stats

The 3-piece AIC Fieldwork effect grants the wearer:

• DMG Dealt +20% for all damage types

• 10% DMG Reduction against all damage types

• Ultimate Gain Efficiency +10%

That combination — flat damage boost, universal mitigation, and faster ultimates — makes it one of the only sets that helps both offense and survivability at once. The individual pieces lean into Spell Damage Increase and Ultimate Gain Efficiency as their offensive substats:

For a damage-focused build, the Gloves + Ember Kit + any armor trio gives you the 3-piece bonus plus the highest Ultimate Gain Efficiency stack. For a more balanced line, mix an armor with a Spell DMG substat.

Best Operators for AIC Fieldwork

Because the bonus applies to all damage types, AIC Fieldwork is flexible across elements. It is strongest on:

• Casters and Arts damage dealers who value the Spell DMG substats and Ultimate Gain Efficiency.

• Burst operators that want both a damage spike and the 10% damage reduction to survive longer in Wuling endgame zones.

• Any unit where you cannot justify a dedicated elemental set (Hot Work for Heat, MI Security for Cryo, etc.) — AIC Fieldwork is the safe, high-value default.

For the exact piece-by-piece breakdown and artificing values, the Icy Veins AIC Fieldwork gear page keeps a live, updated reference.

Rift Trekker — The Support & Survivability Tier 5 Set

Where AIC Fieldwork is about output, Rift Trekker is the Tier 5 set built for operators who live or die by their supportive stats. The confirmed piece data points clearly to a Will-and-Treatment design.

Confirmed Stats & Design

The Rift Trekker Light Armor (a Tier 5 piece) carries:

• Defense +56

• Will +115

• Treatment Bonus +10.8%

Will is the attribute that drives many support, healing, and utility kits, and Treatment Bonus directly scales healing output. Read together, the set is aimed at healers and supports who want more durability (high Defense) and stronger healing (Will + Treatment Bonus) without sacrificing a set bonus to get there. Other Rift Trekker pieces follow the same survival-and-support theme, making a 3-piece Rift Trekker setup a natural pick for dedicated healers and off-field buffers.

Best Operators for Rift Trekker

• Healers (Ardelia, Liino, Ember, Snowshine, Xaihi) who scale with Will and want a defensive bump.

• Off-field supporters that provide auras rather than damage — the set keeps them alive through Wuling's heavier hits.

• Players who prefer a tanky support line over the pure Ultimate-Gain focus of Eternal Xiranite.

If your priority is ultimate uptime over raw healing, Eternal Xiranite (Ultimate Gain Efficiency +20% and team damage on applying buffs) remains the competing option; Rift Trekker is the choice when survivability and healing volume matter more.

Wuling Farming — How to Get Tier 5 Gear Fast

The "Wuling Farming" half of this guide is where most players get stuck, because Tier 5 gear is gated behind the Wuling factory pipeline. Here is the efficient loop.

Unlock the Forge of the Sky

Gold-quality gear in Wuling is built around Xiranite Components, and those come from the Forge of the Sky. The Forge unlocks through the Wuling AIC Plan once you reach the story mission "The Surging Tide," which opens the Xiranite Forging node. It is a 5×5 AIC building crafted with Ferrium Parts ×20.

Crucially, you can place only one Forge of the Sky by default (two with Forge Expansion I). Treat Xiranite as your bottleneck: design the whole downstream line — components, storage buffers, routing — so the Forge never stalls. A half-capacity Xiranite Component line is widely recommended early, since Wuling raw materials are limited and the placement cap is tight.

Fund It With Environmental Monitoring

Wuling Stock Bills are a regional currency you need for every gold gear craft. The fastest legitimate source is Environmental Monitoring, Wuling's weekly photo-quest system. At level 2, it unlocks three weekly quests, each rewarding 250,000 Stock Bills — 750,000 per week. Upgrade Environmental Monitoring as soon as your base supports it; it is your crafting permission slip for Tier 5 gear.

Template Crates & Stock Redistribution

The Tier 5 blueprints themselves (AIC Fieldwork, Rift Trekker) come from the same systems that drop other gold blueprints:

• Gear Template Crates found in Wuling exploration zones — including the new zones opened in Version 1.4's Wuling story expansion.

• Stock Redistribution, where you can purchase blueprints once the system is upgraded.

Check your map for crate markers and grab them as you explore; missing a crate means missing a blueprint until it cycles back through redistribution.

Artificing in Wuling City

Once you have a gold AIC Fieldwork or Rift Trekker piece, push it in Wuling City's Artificing menu. Buy Wuling Artificing Catalysts via stock redistribution, use a "Good Match" material to raise success rates, and rely on Artificing Progress to guarantee eventual success. A fully artificed Tier 5 piece is what separates a cleared Wuling endgame zone from a stalled one.

Building a Tier 5 set is only half the battle — you also need the operators to wear it. Secure your Version 1.4 headliners fast with an Arknights: Endfield top-up at Topuplist and manage your Oroberyl on the official Topuplist site.

Best Gear for the 1.4 Headliners — Arcane & Liino

The two Version 1.4 banners are the natural reason to farm these sets, so here is the practical recommendation for the patch's headline operators.

Arcane's Ideal Sets

Arcane is a Nature Caster whose kit applies Corrosion and Arts Infliction. That makes Hot Work (Nature DMG +50% for 10s after applying Corrosion) her best-in-slot offensive set, with Tide Surge (Arts DMG +35% after 2+ stacks of Arts Infliction) as the alternative when you lean on her control form. AIC Fieldwork is the flexible fallback if you would rather have universal damage plus survivability.

Liino's Ideal Sets

Liino is an Electric Supporter who heals and buffs from a Concert Stance. Eternal Xiranite (Ultimate Gain Efficiency +20%, team damage when she applies buffs) maximizes her uptime, while the new Rift Trekker set is the thematic pick if you want her Will and Treatment Bonus pushed higher for a tankier, harder-healing build. For most players, Eternal Xiranite edges it; Rift Trekker is the defensive option.

AIC Fieldwork vs Rift Trekker — Which Should You Farm First?

The answer depends on your roster's bottleneck:

Default advice: farm AIC Fieldwork first — a dead DPS ends a run faster than a slightly weaker healer, and AIC Fieldwork's universal damage bonus helps more operators. Move to Rift Trekker once your damage is comfortable and your healers need the survivability bump for deeper Wuling zones.

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Farming Priority & Common Mistakes

• Week 1–2 (early Wuling): Rush the Forge of the Sky unlock, then stabilize a half-capacity Xiranite Component line. Without Xiranite, no Tier 5 gear.

• Every week: Clear Environmental Monitoring for the 750k Stock Bills. Skipping it is the most common bottleneck.

• Explore everything: Grab every Gear Template Crate you see — Tier 5 blueprints do not respawn on demand.

• Don't ignore artificing: A raw gold piece is good; a fully artificed one is best-in-slot. Budget catalysts.

• Always aim for 3-piece: A 2-piece set gives nothing. If you must break a set, use exactly one strong offset piece.

• Match element: A Heat DPS in a Cryo set loses ~15% potential damage. Use Hot Work for Heat, MI Security for Cryo, etc.

The complete gear list and set effects are maintained on the Arknights: Endfield Wiki gear page, which is the best reference when you are deciding which crate to prioritize.

Final Verdict

For Version 1.4, AIC Fieldwork and Rift Trekker are the Tier 5 sets worth building toward, and both are gated behind the Wuling factory loop: unlock the Forge of the Sky, fund it with Environmental Monitoring, collect Template Crates, and artifice your best pieces. Farm AIC Fieldwork first for universal damage and survivability, then Rift Trekker for healers and supports. Pair them with the right elemental set for your 1.4 headliners — Hot Work for Arcane, Eternal Xiranite (or Rift Trekker) for Liino — and your roster will be ready for the deepest Wuling content.

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FAQ

What is the AIC Fieldwork 3-piece set effect?
The 3-piece AIC Fieldwork bonus grants +20% DMG Dealt for all damage types, 10% DMG Reduction against all damage types, and +10% Ultimate Gain Efficiency. It is a universal offensive-and-defensive Tier 5 set.

Is Rift Trekker good for healers?
Yes. The confirmed Rift Trekker piece stats (Defense +56, Will +115, Treatment Bonus +10.8%) show it is built for supports and healers who scale with Will and healing output, making it a strong survivability-focused Tier 5 option.

How do I get Tier 5 gear blueprints in Wuling?
Tier 5 blueprints come from Gear Template Crates in Wuling exploration zones (including Version 1.4's expanded areas) and from Stock Redistribution after upgrading that system. You then craft them with Xiranite Components and Wuling Stock Bills.

What unlocks the Forge of the Sky?
The Forge of the Sky unlocks through the Wuling AIC Plan once you reach the story mission "The Surging Tide." It is a 5×5 building crafted with Ferrium Parts ×20, and you can place one by default (two with Forge Expansion I).

How do I get Wuling Stock Bills fast?
Use Environmental Monitoring at level 2 for three weekly photo quests worth 250,000 Stock Bills each (750,000 per week). That is the fastest steady source for gold-gear crafting.

Where should I top up safely?
For a safe, fast top-up, use Topuplist — top up Arknights: Endfield here for quick delivery on every pack.