Genshin Impact Iansan - Theria Games

Introduction

Genshin Impact Iansan is a 4-star Electro Polearm character from Natlan, known for her role as a passionate fitness coach in the Collective of Plenty. She brings a dynamic support playstyle to the battlefield, empowering allies with attack-boosting abilities and contributing consistent Electro damage. Her Elemental Skill enhances nearby teammates’ offensive capabilities by channeling Electro energy, while her Elemental Burst delivers wide-area damage and energizes the party, making her a strong fit for reaction-focused team setups.

When building Genshin Impact Iansan, prioritize stats like Energy Recharge, Elemental Mastery, and ATK% to maximize her supportive output. Polearms that boost her energy generation or buff teammates complement her role well, and artifact sets such as Emblem of Severed Fate or Noblesse Oblige enhance her burst potential and team synergy. Genshin Impact Iansan thrives in lineups that rely on Electro-based reactions like Overload, Superconduct, or Electro-Charged, working best alongside Pyro, Cryo, or Hydro allies. With the right setup, she becomes a valuable asset in maintaining tempo and enhancing overall team performance.

Understanding Iansan’s Role as a Support

Genshin Impact Iansan primarily serves as an ATK buffer support character, offering strong utility to teams by enhancing the offensive power of main damage dealers. Unlike other support characters who provide flat buffs, Iansan’s ATK bonus scales with her own total ATK and is further influenced by her unique Nightsoul Points mechanic. Her Elemental Burst summons a Kinetic Energy Scale that follows the active character, granting ATK buffs based on the number of Nightsoul Points consumed and the movement of the character on the field.

This mechanic rewards active mobility during combat and works especially well with characters who rely on constant repositioning. In addition to her offensive support role, Iansan provides some healing through her Passive Talent “Kinetic Energy Gradient Test.” When a nearby party member triggers a Nightsoul Burst, Iansan gains the Warming Up effect, which enables her to heal the active character based on her ATK whenever she restores Nightsoul Points. While this healing is useful, it serves more as a bonus rather than a primary method of sustain, reinforcing her main role as an offensive support unit in Genshin Impact.

Iansan’s Best Support Build and Stats

Iansan’s Best Support Build and Stats

Genshin Impact Iansan is a 4-star Electro support unit, specializing in teamwide ATK buffs and Electro utility. Her kit centers around Nightsoul Points and synergizes with characters who stay mobile during combat.

Best Artifact Sets for Iansan

Beast Tamer’s TalismanMountain Ranger’s MarkerMystic’s Golden DialWandering Scholar’s Claw CupDemon-Warrior’s Feather Mask

4-Piece Scroll of the Hero of Cinder City

• Best-in-slot for Iansan when teamed with Natlan characters or Elemental Reaction comps.
• Increases Elemental DMG dealt by the entire party when reactions are triggered.

Royal FloraRoyal Pocket WatchRoyal PlumeRoyal MasqueRoyal Silver Urn

4-Piece Noblesse Oblige

• Great generalist set, boosting team ATK after Iansan uses her Burst.
• Ideal if another unit already holds Cinder City set or in non-Natlan teams.

Gladiator’s NostalgiaGladiator’s LongingMorning Dew’s MomentHopeful Heartany stats the Iansan user prefers

2-Piece Mixed ATK Sets

• Combos like 2-piece Gladiator’s Finale + 2-piece Shimenawa’s Reminiscence are viable.
• Focused on maximizing Iansan’s total ATK to strengthen her buffs.

Best Weapons for Iansan

WeaponRaritySub-statEffect & Notes
Calamity Queller★★★★★ATK%High ATK%, boosts Elemental DMG, excellent for scaling Iansan’s buffs and enhancing her support role.
Engulfing Lightning★★★★★Energy RechargeGreat Energy Recharge substat, converts Energy Recharge to ATK, perfect for improving Elemental Burst uptime.

5-Star Weapons

• Calamity Queller – High ATK%, boosts Elemental DMG, excellent for buff scaling.
• Engulfing Lightning – Great Energy Recharge substat and converts ER to ATK.

Best 4-Star Weapons for Iansan

WeaponRaritySub-statEffect & Notes
Favonius Lance★★★★Energy RechargeGenerates Energy Particles, helpful for team rotation and ensuring consistent Elemental Burst uptime.
Tamayuratei no Ohanashi★★★★ATK%Synergizes well with her Electro mechanics, enhancing overall team support.
Prototype Starglitter★★★★Energy RechargeCraftable weapon that provides Energy Recharge, assisting with Elemental Burst uptime.Any high ATK% Polearm★★★★ATK%Boosts Iansan’s ATK-based buffs when Energy Recharge needs are already met.

4-Star Weapons

• Favonius Lance – Generates Energy Particles, useful in team rotation support.
• Tamayuratei no Ohanashi – Synergizes well with her Electro mechanics.
• Prototype Starglitter – Craftable option with Energy Recharge.
• Any high ATK% Polearm – Can boost her ATK-based buffs if ER needs are already met.

Best Stats for Iansan

Iansan relies heavily on high ATK and Energy Recharge to maintain Burst uptime and maximize buffs.

Main Stats:

• Sands: ATK% or Energy Recharge (choose based on ER needs).
• Goblet: ATK%.
• Circlet: ATK% or CRIT Rate (if using Favonius Lance to trigger passive).

Substats Priority:

1. Energy Recharge – Essential for consistent Burst usage.
2. ATK% – Directly scales her ATK buff strength and healing potential.
3. CRIT Rate / CRIT DMG – Only if needed for weapon passives like Favonius Lance.

Iansan’s Role in Combat

Genshin Impact Iansan excels as a dedicated ATK buffer and Electro utility support. Her Burst summons a Kinetic Energy Scale that moves with the active character and boosts ATK based on her own ATK and Nightsoul Points, rewarding fast-moving characters and fluid combat. Her passive healing from Kinetic Energy Gradient Test provides additional sustain, healing the active character when restoring Nightsoul Points. Though not a main healer, her supportive capabilities shine in reaction-focused teams and burst-heavy comps, especially when optimized for Energy Recharge and ATK scaling.

Talents and Gameplay

Normal Attack: Weighted SpikeThunderbolt RushElemental Burst: The Three Principles of Power

Understanding Iansan’s talents is essential to unlocking her full potential as a support unit in Genshin Impact. Her talent priority for a support build is Elemental Burst first, followed by Elemental Skill, and then Normal Attack. Iansan’s Normal Attack, Weighted Spike, consists of up to three spear strikes, with a Charged Attack that allows her to lunge forward and a Plunging Attack that deals area-of-effect damage. While her Normal Attacks are not the focus for a support role, her Charged Attack is enhanced during the Nightsoul’s Blessing state, becoming Swift Stormflight and dealing AoE Electro damage. Her Elemental Skill, Thunderbolt Rush, unleashes an Electro-charged dash, but has lower priority when building Iansan strictly for support.

Her Elemental Burst, The Three Principles of Power, is the core of her support capabilities. Upon activation, she deals AoE Electro damage and summons a Limited-Edition Kinetic Energy Scale, gaining 15 Nightsoul Points and entering the Nightsoul’s Blessing state. The Kinetic Energy Scale follows the active character and grants them an ATK buff based on Iansan’s ATK and current Nightsoul Points. If she has fewer than 42 Nightsoul Points, the ATK bonus scales with both her ATK and Nightsoul Points.

At 42 or more, the scale enters the “Ardent Support!” state, providing a stronger ATK buff based solely on Iansan’s ATK. The scale also restores Nightsoul Points to Iansan based on the movement of the active character. Her Nightsoul’s Blessing state ends when the Kinetic Energy Scale disappears but remains active even if Iansan is off-field.

Iansan’s Passive Talents strengthen her utility further. Night Realm’s Gift: Hard Work and Drive allows her to use Phlogiston to sustain the Nightsoul’s Blessing in areas with Phlogiston Mechanics after her Nightsoul Points are depleted. Switching to Iansan while the active character is sprinting, moving in certain ways, or airborne grants her 25 Nightsoul Points. Enhanced Resistance Training increases her ATK and Nightsoul Point restoration when Swift Stormflight hits an enemy.

At Constellation 2, this passive is also triggered when using her Burst, and if Iansan is off-field while it’s active, she boosts the on-field character’s ATK by 30%. The Kinetic Energy Gradient Test passive allows Iansan to heal the active character based on her ATK when she restores Nightsoul Points after a nearby character triggers a Nightsoul Burst. Finally, Caloric Balancing Plan helps her maintain momentum in Natlan by restoring 10 Phlogiston when her level drops below 50% in areas with Phlogiston Mechanics.

Constellations

ConstellationEffectDetailsC1 – Energy RechargeIncreases Elemental Energy restoration.This constellation allows Iansan to restore more Elemental Energy when using her Elemental Burst, helping maintain a more consistent uptime for her abilities.C2 – Laziness is the Enemy!Grants the Precise Movement effect upon activating her Elemental Burst.While Iansan is off-field and the effect is active, the on-field character receives a 30% ATK bonus, significantly boosting overall team damage output during rotations.C3 – Enhanced Elemental SkillIncreases the level of Iansan’s Elemental Skill.This constellation enhances her Elemental Skill, allowing her to deal more damage when she uses it, improving her offensive capabilities when on-field.C4 – Improved Nightsoul Point InteractionEnhances the interaction with Nightsoul Points.This constellation improves Iansan’s Nightsoul Point mechanics, making her support role even more effective in managing energy and boosting team performance.C5 – Enhanced Elemental BurstIncreases the level of Iansan’s Elemental Burst.This constellation further boosts the damage potential and effectiveness of her Elemental Burst, enhancing her support role when she activates it.C6 – Teachings of the Collective of PlentyIncreases the duration of Kinetic Energy Scale and grants the Extreme Force effect.This powerful constellation increases the duration of Kinetic Energy Scale summoned by her Elemental Burst and grants the Extreme Force effect, boosting the active character’s damage by 25% for 3 seconds when restoring more Nightsoul Points than her cap allows.

Iansan’s Constellations provide powerful upgrades that enhance her utility and amplify her support capabilities in Genshin Impact. Her second constellation, Laziness is the Enemy!, is a standout for team-wide offensive support. When unlocked, this constellation grants Iansan the Precise Movement effect upon activating her Elemental Burst.

While she is off-field and this effect is active, the on-field character receives a significant 30% ATK bonus, greatly boosting team damage output during rotations. Her sixth constellation, Teachings of the Collective of Plenty, further enhances her value by increasing the duration of the Kinetic Energy Scale summoned by her Elemental Burst. Additionally, when Iansan restores more Nightsoul Points than her current cap allows, the overflow grants the Extreme Force effect to the active character, boosting their damage by 25% for three seconds.

Other constellations also contribute to her overall performance, such as increased Elemental Energy restoration from C1 and improved Nightsoul Point interaction at C4, rounding out her kit and making her increasingly versatile with each unlock.

Ascension and Talent Materials

Material TypeMaterialSourceDetailsAscension MaterialsVajrada Amethyst (Sliver, Fragment, Chunk, Gemstone)Electro Hypostasis, Thunder ManifestationVajrada Amethyst is dropped by Electro-themed bosses, including Electro Hypostasis and Thunder Manifestation. These materials come in four tiers, which are needed at various stages of Iansan’s ascension.DracoliteNatlan Local SpecialtyDracolite is a local specialty from Natlan, a region-specific material that is required for Iansan’s ascension.Sentry’s Wooden WhistleTribal WarriorsThis item is dropped by Tribal Warriors, enemies found in Natlan. It is one of the required materials for Iansan’s ascension.Warrior’s Metal WhistleTribal WarriorsAnother item dropped by Tribal Warriors in Natlan, necessary for ascension.Saurian-Crowned Warrior’s Golden WhistleTribal WarriorsDropped by specific Tribal Warriors, this whistle is part of the required materials for Iansan’s ascension.Ensnaring GazeDropped by Knave (boss)This boss material is dropped by the Knave, a boss in the game, and is essential for ascending Iansan.Talent Level-Up MaterialsTeachings of ContentionDomain of Mastery: Runic Sundial (Monday/Thursday/Sunday)Teachings of Contention is a material that can be obtained from the Domain of Mastery: Runic Sundial on specific days of the week, including Monday, Thursday, and Sunday. This material is used to level up Iansan’s talents.Guide to ContentionDomain of Mastery: Runic Sundial (Monday/Thursday/Sunday)A higher-tier material required for talent upgrades, which is also found in the Domain of Mastery: Runic Sundial on the same days.Philosophies of ContentionDomain of Mastery: Runic Sundial (Monday/Thursday/Sunday)The highest tier of the Contention series, necessary for maxing out Iansan’s talents. This item is found in the same domain as the other Contention materials.Sentry’s Wooden WhistleTribal WarriorsThis item is needed for both ascension and talent leveling. It is dropped by Tribal Warriors and must be collected multiple times.Warrior’s Metal WhistleTribal WarriorsAs with the Wooden Whistle, this material is obtained from Tribal Warriors in Natlan and is required for talent level-ups.Saurian-Crowned Warrior’s Golden WhistleTribal WarriorsAnother item dropped by Tribal Warriors, and necessary for both ascension and talent leveling.DenialDropped by Knave (weekly boss)Denial is dropped by the Knave, a weekly boss, and is required for upgrading Iansan’s talents.JudgmentDropped by Knave (weekly boss)Judgment is another material dropped by the Knave, also required for leveling up Iansan’s talents.Crown of InsightIn-game events and progressionThis rare item is essential for maxing out Iansan’s talents and is obtained through various in-game events and milestones in the game’s progression. It is not available regularly and can be earned through special events.

To fully ascend Iansan and upgrade her talents in Genshin Impact, players will need a combination of regional specialties, boss drops, and domain materials, primarily sourced from Natlan and Electro-themed enemies. Her character ascension requires Vajrada Amethyst materials, which come in four tiers—Sliver, Fragment, Chunk, and Gemstone—and are obtained from bosses like the Electro Hypostasis and Thunder Manifestation. Another key ascension material is Dracolite, a Natlan local specialty. Additionally, players will need enemy drops from Tribal Warriors, including Sentry’s Wooden Whistle, Warrior’s Metal Whistle, and Saurian-Crowned Warrior’s Golden Whistle. The boss material Ensnaring Gaze, dropped by the Knave, is also required for ascension.

For talent level-up materials, Iansan uses the Contention series—Teachings, Guide, and Philosophies of Contention—which are available on Monday, Thursday, and Sunday in the Domain of Mastery: Runic Sundial. These are supplemented by more of the same Tribal Warrior drops needed for ascension. To further enhance her talents, Denial and Judgment, a weekly boss material dropped by the Knave, is required. Lastly, the rare Crown of Insight, acquired through in-game events and progression milestones, is essential for maxing out her talents.

Best Team Compositions

Iansan’s flexible support toolkit makes her a strong addition to a variety of team archetypes, especially those built around ATK-scaling damage dealers and characters that benefit from high mobility. In Varesa-Iansan plunge-focused teams, Iansan shines alongside Varesa, another Natlan native, due to their shared synergy with Nightsoul mechanics. Their coordinated kits allow for reduced cooldown overlap on Nightsoul Bursts, while Varesa’s agile playstyle helps quickly regenerate Iansan’s Nightsoul Points. When paired with characters like Xianyun for plunge buffs and Furina for off-field support and healing synergy, the team can reach impressive damage levels.

MavuikaXilonenFurina

In hypercarry compositions, Iansan supports DPS units like Mavuika, whose Burst abilities benefit from rapid Nightsoul Point depletion. Iansan’s consistent buff uptime, combined with Mavuika’s movement-based mechanics, allows for optimized Burst rotations. Supportive units like Xilonen and Furina can fill in healing and buff roles, creating a well-rounded, synergistic core.

MavuikaClorindeFischlRaiden ShogunChevreuseBennett

Iansan is also effective in Overload reaction teams where movement and frequent positioning shifts are key. Her Nightsoul Point regeneration benefits characters who trigger Overload often, such as Mavuika or Clorinde. When combined with Electro sub-DPS units like Fischl or Raiden Shogun and Pyro supports like Chevreuse or Bennett, these teams can apply continuous elemental pressure while maximizing Iansan’s ATK buffs.

VaresaClorindeNahidaBaizhu

In Aggravate teams, Iansan can work alongside Electro main DPS characters like Varesa or Clorinde and Dendro enablers like Nahida to enhance Electro-based reaction damage. Her support role provides consistent ATK boosts while still contributing with healing and utility. Sustain-focused units like Baizhu can add defensive coverage for longer fights.

EulaFreminetMikaFischlRaiden Shogun

For Superconduct compositions built around Physical DPS, Iansan’s ATK scaling is valuable for amplifying damage from units like Eula or Freminet. Pairing her with Cryo supports such as Mika and Electro units like Fischl or Raiden helps maintain Superconduct uptime while ensuring the active character continuously benefits from Iansan’s off-field buffs.

Should You Invest in Iansan?

Iansan offers a strong support option for teams that benefit from consistent ATK buffs and mobility-based synergy. As an ATK-scaling support, her Kinetic Energy Scale provides powerful team-wide ATK bonuses that scale with her own stats, making her especially effective in teams with mobile DPS characters. She also brings additional utility through Nightsoul Point regeneration and situational healing, increasing her overall value.

Her constellations, particularly C2 and C6, significantly enhance her ability to buff off-field and amplify team damage. With her debut as a featured 4-star character in Version 5.5 Phase 1 alongside Varesa and Xianyun, players have a timely opportunity to add her to their roster and potentially unlock some of her impactful constellations. For those seeking an alternative to traditional supports or building Natlan-focused teams, Iansan is a compelling pick.