Iansan Profile, Talents and Constellations

Iansan Profile, Talents and Constellations

Iansan is a 5-Star Electro character in Genshin Impact who buffs and heals. Read our Iansan guide to learn more about Iansan's kit, her best builds, as well as her Ascension and Talent Materials.

Last updated Yesterday at 09:00 by GachaHub
Electro Element
Polearm Weapon
Rarity
Katrina Salisbury EN Voice Actor
Ohashi Ayaka JP Voice Actor

Introduction — Iansan

Iansan is a 5-Star Electro Polearm Character in Genshin Impact. Our Iansan guide and best builds cover everything you need to know about her optimal setup, including skills, artifacts, team compositions, and more. To learn more about Iansan, use the tabs above to switch to our build information for Iansan or her team compositions.

Iansan's Strengths & Weaknesses

V Strengths
  • +Great ATK buffs while also being an excellent Scroll holder, giving her amazing party utility.
  • +Easy to build, only needing ER and ATK %.
  • +Constellations are incredibly valuable, with C2 and C6 providing significant boosts on top of an already strong kit.
X Weaknesses
  • -Iansan's ATK buff is heavily reliant on character mobility, with characters who do not move around the field gaining far less from it.
  • -Her healing can be a little low, meaning a second sustainer may be required depending on your team composition and the content you're using Iansan in.
  • -Due to her lower healing output, Iansan can struggle to generate Furina's Fanfare at C0.

Ascension Stat & Materials for Iansan

Ascension Stat: 24.0% ATK

Iansan gains ATK % each time she ascends, totalling 24.0% at level 90. The total Ascension material costs are listed below:

Source Quantity
Mora 420,000 Mora
Boss Material 46x Ensnaring Gaze
Ascension Material
Local Specialty 168x Dracolite
Enhancement Material
  • 18x Sentry's Wooden Whistle
  • 30x Warrior's Metal Whistle
  • 36x Saurian-Crowned Warrior's Golden Whistle

Talent Materials for Iansan

Listed below are all the materials required to raise a single talent of Iansan's to level 10. Please check our Iansan build guide for recommendations on talent priorities.

Source Quantity
Mora 1,625,500 Mora
Special Material 1x Crown of Insight
Boss Material 6x Denial and Judgment
Domain Material
  • 3x Teachings of Contention
  • 21x Guide to Contention
  • 38x Philosophies of Contention
Enhancement Material
  • 6x Sentry's Wooden Whistle
  • 22x Warrior's Metal Whistle
  • 31x Saurian-Crowned Warrior's Golden Whistle

Iansan's Talents

Weighted Spike
Weighted Spike
Normal Attack

Normal Attack

Performs up to 3 consecutive spear strikes.

Charged Attack

Consumes a certain amount of Stamina to lunge forward, dealing damage to opponents along the way.

Plunging Attack

Plunges from mid-air to strike the ground below, damaging opponents along the path and dealing AoE DMG upon impact.

Nightsoul State: Swift Stormflight

While in the Nightsoul's Blessing state: Iansan's Charged Attack will be transformed into the formidable Swift Stormflight, consuming a certain amount of Stamina to stomp fiercely down, dealing Nightsoul-aligned AoE Electro DMG.

Thunderbolt Rush
Thunderbolt Rush
Elemental Skill

Iansan charges forward a certain distance, dealing Nightsoul-aligned Electro DMG to all opponents in her path.

After this Skill is used, Iansan will regain 54 Nightsoul points and enter the Nightsoul's Blessing state. Within 5s after this is done, using a Normal Attack will trigger 1 quick Swift Stormflight stomp from Iansan that will not consume Stamina.

Nightsoul's Blessing: Iansan

Continuously consumes Nightsoul points. If she runs out, or uses this Skill again, her Nightsoul's Blessing state will end. It has the following properties:

  • Increases Iansan's Movement SPD.
  • Holding sprint will switch Iansan to Rushing Thunderbolt mode, greatly increasing her Movement SPD temporarily. In this mode, Iansan can make flying leaps using terrain, or consume additional Nightsoul points to move on water or liquid Phlogiston while being immune to DMG from the latter.

"Faster, stronger! That's what all that hard work is for!"

The Three Principles of Power
The Three Principles of Power
Elemental Burst

Iansan's stomping foot shatters the very earth with "Power," dealing Nightsoul-aligned AoE Electro DMG. She then whips out her "Limited-Edition Kinetic Energy Scale (For Workouts)."

When this Skill is used, Iansan will gain 15 Nightsoul points and enter the Nightsoul's Blessing state.

When the Kinetic Energy Scale leaves the field, Iansan's Nightsoul's Blessing state will end.

Kinetic Energy Scale

The Kinetic Energy Scale will follow the character around, boosting the ATK of your current active party member in different ways based on Iansan's Nightsoul points.

  • If Iansan has less than 42 Nightsoul points, the ATK bonus will be based on her Nightsoul points and ATK.
  • If Iansan has at least 42 Nightsoul points, the Kinetic Energy Scale will switch to the "Ardent Support!" state, in which the ATK bonus will be stronger and based on her ATK alone.

Additionally, the Scale will log the distance your current active character (excluding Iansan) has moved so long as it is active, restoring Nightsoul points to Iansan every second based on the distance moved in the previous second.

The Scale will disappear once her Nightsoul's Blessing state ends. It will also disappear after 1 second when you are not in a state of combat. While it is active, Iansan's Nightsoul's Blessing state will not end even if she is not on the field.

"Power is not about natural talent. Power stems from unceasing practice. Power must be exercised correctly."

Iansan's Ascension Passive Talents

Enhanced Resistance Training
Enhanced Resistance Training
1st Ascension Passive

After Swift Stormflight hits opponents, Iansan will gain the Precise Movement effect for 15s.

During this time, her ATK is increased by 20%, and whenever she regains Nightsoul points through the Kinetic Energy Scale in her Elemental Burst, The Three Principles of Power, she will gain 1 extra Nightsoul point. Additionally, when your current active party member consumes or restores Nightsoul points, the extra Nightsoul points Iansan gains the next time she restores Nightsoul points via the Scale will be increased to 4. This effect can occur once every 2.8s.

"Precise Movement" will expire when Iansan's Nightsoul's Blessing state ends.

Kinetic Energy Gradient Test
Kinetic Energy Gradient Test
4th Ascension Passive

When a nearby party member triggers a Nightsoul Burst, Iansan will obtain the Warming Up effect for 10s.

During this time, when Iansan restores at least 1 Nightsoul point, she will heal your current active character for 60% of her ATK. This effect can be triggered once every 2.8s.

Night Realm's Gift: Hard Work and Drive
Night Realm's Gift: Hard Work and Drive
Night Realm's Gift

After Nightsoul points have been fully depleted and Iansan is on the field, she will switch to using Phlogiston to maintain her Nightsoul's Blessing.

While in an area with Phlogiston Mechanics within Natlan, Nightsoul Transmission: Iansan can be used. When the current active character is sprinting or in movement modes caused by certain Talents, or at a certain height in the air, switching to Iansan will trigger the following: Iansan enters the Nightsoul's Blessing state and obtains 25 Nightsoul points. Nightsoul Transmission can be triggered once every 10s by your own party.

While in an area with Phlogiston Mechanics within Natlan, Iansan will not take fall DMG when using terrain differences to make leaps.

Caloric Balancing Plan
Caloric Balancing Plan
Utility Passive

While in an area with Phlogiston Mechanics within Natlan, regain 10 Phlogiston when Phlogiston levels drop below 50%. This can occur once every 10s.

Iansan's Constellations

Starting's Never Easy
Starting's Never Easy
Constellation
C1

When Iansan is in combat and is in the Nightsoul's Blessing state, she will restore 15 Elemental Energy for every 6 Nightsoul points she consumes. This effect can trigger once every 18s.

Laziness is the Enemy!
Laziness is the Enemy
Constellation
C2

When using the Elemental Burst The Three Principles of Power, Iansan will also gain the Precise Movement effect from her Passive Talent "Enhanced Resistance Training" for 15s. Additionally, if Iansan is off-field while Precise Movement is active, she will also increase your current active character's ATK by 30%. You must first unlock the Passive Talent "Enhanced Resistance Training" to access the above effect.

Scientific Diet Planning
Scientific Diet Planning
Constellation
C3

Increases the Level of Thunderbolt Rush by 3.
Maximum upgrade level is 15.

Slow and Steady Wins the Race
Slow and Steady Wins the Race
Constellation
C4

When the Kinetic Energy Scale is present, Iansan will gain 2 stacks of Surging Force after your current active character (excluding herself) uses their Elemental Burst. The stacks last until the Scale leaves the field, and Surging Force can be gained once per Scale summoning. Whenever Iansan restores Nightsoul points via the Scale, she will consume 1 Surging Force stack and restore 4 additional Nightsoul points.
Additionally, if her Nightsoul restoration from the Scale overflows, Iansan will gain 50% of the overflow the next time she restores Nightsoul points via the Scale.

We Can Push It Further!
We Can Push It Further
Constellation
C5

Increases the Level of The Three Principles of Power by 3.
Maximum upgrade level is 15.

Teachings of the Collective of Plenty
Teachings of the Collective of Plenty
Constellation
C6

The Kinetic Energy Scale's duration is increased by 3s.
Additionally, when Iansan triggers Nightsoul point restoration, if there is any overflow, she will gain the Extreme Force effect, which increases the DMG dealt by your current active character by 25% for 3s.

Changelog

  • 20 Apr. 2026: Iansan guide updated for 6.5.
  • 28 Sep. 2025: Updated for 6.0.
  • 28 Mar. 2025: Full guide.
  • 13 Feb. 2025: Initial Page release.
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