Arknights Shu Build Guide: Best Skill Priority and Module

Jessica Turner

Jun 12, 2026

Hello Doctors! Welcome to our Shu Build Guide for Arknights. This Operator guide covers everything you need to know about the Nongye Tianshi of Sui, including her sowing mechanics, Guardian Defender playstyle, talent breakdowns, skill upgrade priorities, module recommendations, and a clear verdict on whether she's worth pulling.

Planning to pull for Shu? Prepare with LootBar now!

Shu

6 Star Operator Details
	Rarity	6★ Festival Limited
	Class	Defender - Guardian
	Tag	Defense, Healing, Support
	Block	2 / 3
	Role	Tank / Healer / Squad-wide Buffer

Shu Overview

Shu is a 6-star Festival Limited Guardian Defender from Sui who turns the battlefield itself into her toolkit. Like all Guardians she attacks the enemies she blocks and heals allies through her skills, but where most of her archetype simply trade attacks for heals, Shu leaves something behind on every tile she touches. Her first talent, Myriad Grains, Everlasting, sows any tile she heals an ally on, granting it and the four adjacent tiles permanent HP regeneration and a Sanctuary effect that lasts the entire fight. Her second talent, From Seasons Fourfold, reads the squad composition and stacks buffs accordingly: three different classes grants Max HP, three of the same class grants ASPD, and four Sui operators grants ATK plus passive SP regeneration for the whole team. Her signature skill, Samsara, lets her attacks heal a nearby ally without slowing her attack rate, while sowed tiles buff the ATK and ASPD of any operator standing on them and warp displaced enemies back into the trap, creating terrain-based kill setups that no other Defender can offer.

Shu Talents

Below are Shu's talent breakdowns in Arknights:

Talent 1 - Myriad Grains, Everlasting (Unlocked at Elite 1, improves at Elite 2)

Whenever Shu heals an operator through her skills, she sows that tile and the 4 adjacent tiles. Sowed tiles permanently grant HP regeneration and a Sanctuary effect to any friendly unit standing on them. At Elite 1 this restores 45 HP/s and grants 7% Sanctuary, increasing to 75 HP/s and 12% Sanctuary at Elite 2. The HP regeneration is unaffected by healing modifiers and applies unconditionally. Sowed tiles remain active until Shu leaves the field, meaning a well-positioned Shu can blanket an entire chokepoint in permanent healing and damage reduction over the course of a fight. Potential 5 further improves this talent.

Talent 2 - From Seasons Fourfold (Unlocked at Elite 2)

A squad-composition-based passive that stacks multiple conditions simultaneously. If at least 3 operators of different classes are on the field while Shu is deployed, all operators gain +12% Max HP. If at least 3 operators of the same class are on the field while Shu is deployed, all operators gain +12 ASPD. If the squad contains at least 4 Sui operators (Shu included, regardless of whether she's deployed or a Support Unit), all deployed operators gain +12% ATK and +1 SP every 4 seconds. These effects all stack if their conditions are met simultaneously, making Shu a quiet force multiplier for diverse comps and an even bigger one for Sui-themed teams.

Shu Skill Priority

Below are the skill upgrade and Mastery priorities for Shu in Arknights:

Skill	Priotiy
S3 - Samsara	★★★★★ (Highest)
S2 - Bountiful Harvest	★★★ (Situational)
S1 - Verdant Wisdom	★★ (Low, AFK only)

Get all three skills to Level 7 first before investing in any Mastery. Shu's S3 is her main skill and the primary reason to invest in her, turning her into a powerful healing engine that can keep a team stalling almost indefinitely. S2 is situational and only worth Mastery if you specifically need higher multi-target healing than S3 provides, which is uncommon. S1 is a low-effort AFK option and doesn't need Mastery.

S3 - Samsara (M3) - Best Choice

Samsara lets Shu's attacks heal a nearby ally without increasing her attack interval, resulting in extremely high healing output for a single skill. Combined with Myriad Grains, Everlasting, sowed tiles also buff ATK and ASPD for allies standing on them, and displaced enemies get warped back into sowed tiles, opening up terrain-trap interactions against specific bosses. This is the skill that makes Shu capable of keeping a team practically immortal through sustained stalling. Mastery should be the first priority for anyone investing in her.

S2 - Bountiful Harvest - Situational

Bountiful Harvest stops Shu from attacking and instead heals all friendly units in a 2-tile radius at an increased interval, while buffing her ATK, block count, and the effectiveness of Myriad Grains, Everlasting. Useful when a fight demands more multi-target healing than S3 can provide, but this scenario is uncommon. Mastery only if you have a specific use case in mind.

S1 - Verdant Wisdom - Skip

Verdant Wisdom heals a friendly unit below 50% HP in surrounding tiles when charged, with multiple charges at higher levels. Functional as a low-maintenance AFK option, but offers nothing beyond that. No reason to invest Mastery here.

Shu Module

Module Information
Module	GUA-X: On Architecture of Time
Recommended Stage	Stage 1
Priority	Low - get when you're rich

Shu's GUA-X module increases the effectiveness of her healing on operators below 50% HP by 15% at Stage 1, alongside minor boosts to max HP, ATK, and DEF. Stage 2 increases the HP regeneration from Myriad Grains, Everlasting, and Stage 3 increases the Sanctuary effect while also sowing Shu's own tile on deployment. While these upgrades are thematically fitting, the overall performance gain is minor relative to the cost. Shu is already strong without it, so this module is best treated as a late-game investment once higher-priority modules are covered.

Is Shu Worth Pulling?

Short answer: Yes

Strengths

Very powerful healer, with Samsara enabling extremely high sustained healing output without sacrificing attack interval
Myriad Grains, Everlasting provides constant damage reduction through Sanctuary alongside passive healing, making her a strong survivability tool on top of being a healer
S3 also functions as a buffer, granting allies on sowed tiles ATK and ASPD buffs
Powerful staller, able to keep enemies contained for the duration of S3
From Seasons Fourfold provides squad-wide buffs to Max HP, ASPD, or ATK and SP regen depending on composition, with no extra setup required
Purchasable at the Certificate Store during her banner, reducing pull pressure

Weaknesses

A bit worse than Saria in direct tanking against enemies

Pull if you:

Want a powerful sustain and stalling tool for difficult content
Run Sui-themed teams or diverse squad compositions that benefit from From Seasons Fourfold
Need a Defender that also provides meaningful healing and squad-wide buffs

Skip if you:

Already have Saria or another strong Guardian Defender covering this role
Are saving for a higher-priority limited banner
Are early-game and short on Elite 2 materials

Conclusion

Shu turns the battlefield into her own garden, where every healed tile becomes permanent healing, damage reduction, and buffs that quietly snowball over the course of a fight. By following our Shu build guide, we hope you can grow a defense that simply refuses to fall. To easily obtain Shu, go to LootBar now for discounted and secure Arknights top-up!