Iansan, the newly introduced 4-star Electro unit in Genshin Impact 5.5, represents the Collective of Plenty tribe from Natlan, much like her counterpart Varesa. Wielding a Polearm, her skill set is specifically tailored to enhance ATK-scaling DPS characters, making her an exceptional support option within the game.
This guide aims to provide an in-depth look at the optimal build for Iansan, highlighting her best weapons, artifacts, team compositions, and talent priorities.
The Ideal Weapons for Iansan
1) Engulfing Lightning

The Engulfing Lightning, Raiden Shogun’s signature Polearm, emerges as the premier weapon for Iansan. It significantly boosts Energy Recharge—essential for Iansan, who needs consistent access to her Elemental Burst to maximize her buffing capabilities. Moreover, it scales ATK based on the user’s Energy Recharge, enhancing Iansan’s overall damage output as she supports her teammates.
2) Calamity Queller

If you possess the Calamity Queller, Shenhe’s signature weapon, it’s a fantastic option for Iansan. This Polearm offers a high base ATK and enhances the user’s ATK bonus, further elevating Iansan’s overall strength in battle.
3) Skyward Spine

The Skyward Spine, available in the 5-star Standard Banner, presents decent Energy Recharge stats. For players lacking other high-tier Polearms, this is a reliable choice that complements Iansan’s need for Energy Recharge.
4) Tamayuratei no Ohanashi

As a free-to-play option, Tamayuratei no Ohanashi can seamlessly integrate into Iansan’s build. At Refinement Rank 5, it offers a significant 40% ATK boost along with additional Energy Recharge, making it beneficial for her overall performance.
5) Favonius Lance

Favonius Lance stands out as an excellent 4-star choice, providing a solid Energy Recharge secondary stat. Its passive ability helps generate extra Energy, reinforcing Iansan’s support role in a team setting.
Optimal Artifacts for Iansan
1) Scroll of the Hero of Cinder City

The 4-piece Scroll of the Hero of Cinder City is the superior artifact set for Iansan. It boosts Energy regeneration and allows her to provide valuable Elemental DMG buffs for her allies.
For optimal performance, focus on the following main stats:
- Sands: ATK% or Energy Recharge
- Goblet: ATK%
- Circlet: ATK%
2) Noblesse Oblige

In instances where another team member utilizes the Scroll of the Hero of Cinder City, it’s advisable to equip Iansan with the Noblesse Oblige set. This set enhances all party members’ ATK by 20%, making it an effective secondary choice.
Suggested main stats include:
- Sands: ATK% or Energy Recharge
- Goblet: ATK%
- Circlet: ATK%
Top Team Compositions Featuring Iansan

Iansan excels as a buffer, enhancing the damage output of ATK-scaling DPS characters. Her buffs depend on the movement of the active character, making her particularly effective with agile combatants. Here are five optimal team compositions for Iansan:
- Iansan + Varesa + Furina + Xianyun
- Iansan + Kinich + Emilie + Xiangling
- Iansan + Mavuika + Bennett + Citlali
- Iansan + Xiao + Xianyun + Faruzan
- Iansan + Clorinde + Mavuika + Chevreuse
Talent Prioritization for Iansan
When planning Iansan’s talents, focus on the following priorities:
Elemental Burst > Elemental Skill > Normal Attack
Iansan’s buffs are most influenced by her Elemental Burst, so maximizing it is crucial. While her Elemental Skill and Normal Attack are important, prioritizing the Elemental Burst for upgrading is advisable given her support role.