Even seasoned Travelers facing dragons and Abyss Lectors shouldn't skip proper preparation—Iansan ensures your Genshin Impact squad stays battle-ready. This four-star Electro support dramatically boosts team ATK, demanding constant movement and strategic weapon choices. Her effectiveness hinges on meeting high Energy Recharge needs for consistent Burst uptime while stacking enough ATK to maximize her buffs. Selecting the right polearm isn't just about personal stats; it's about transforming her into the ultimate team coach. So, what weapons truly help Iansan push your party to its peak performance?
⚡ 8. Prototype Starglitter
Craftable Four-Star
This accessible craftable option is a pure Energy Recharge stat stick. Its passive offers little value, and base ATK is mediocre, making it a temporary solution at best. However, its high ER% substat directly addresses Iansan's most critical need early-game. Players should replace it once better alternatives become available, but it serves as a reliable starting point for smoothing rotations.
🎣 7. The Catch
Free Four-Star From Fishing
No ER-focused polearm list skips this free powerhouse. While its passive (CRIT Rate/DMG buff) shines brighter on off-field DPS units, The Catch still provides exceptional value for Iansan. Its hefty ER% substat guarantees smoother rotations, and unlike pure supports like Xilonen, Iansan can utilize the passive's damage boost to contribute minor personal DPS—making it superior to many gacha options.
🌿 6. Moonpiercer
Craftable Four-Star
Don't be fooled by its Elemental Mastery substat—largely wasted on Iansan. Moonpiercer's true strength lies in its passive: triggering Dendro reactions grants another ATK boost to a teammate. This makes it Iansan's premier free choice in Kinich teams, layering extra ATK% atop her already massive Burst buff. It's niche but incredibly potent within that specific team archetype.
🎁 5. Tamayuratei no Ohanashi (Event Polearm)
Event Four-Star
Balancing ER% and ATK% perfectly, this past event weapon excels for Iansan. Its ER% substat ensures Burst readiness, while its passive grants a significant ATK boost after using her Elemental Skill. This synergizes flawlessly with her standard Skill-into-Burst particle-catching playstyle. It often outperforms gacha weapons, helping her reach her ATK buff cap effortlessly.
⚔️ 4. Calamity Queller
Five-Star
Unlike Bennett (who scales only off base ATK), Iansan's buff leverages her total ATK. Calamity Queller offers the highest ATK% substat among polearms, accelerating her path to the buff cap. However, it lacks ER%, demanding near-perfect artifact rolls to maintain Burst uptown. A viable luxury option if Energy needs are met elsewhere.
| Weapon | Rarity | Key Substats | Best For |
|---|---|---|---|
| Favonius Lance | ★★★★ | ER%, Team Energy | Overall Best Support |
| Engulfing Lightning | ★★★★★ | ER%, ATK% (Scaling) | High Investment Burst Support |
| Skyward Spine | ★★★★★ | ER%, ATK | Balanced Stats |
| Tamayuratei no Ohanashi | ★★★★ | ER%, ATK% (Passive) | F2P-Friendly Power |
| The Catch | ★★★★ | ER%, DMG% | Free & Versatile |
🌪️ 3. Skyward Spine
Standard Five-Star
A consistently solid, if unspectacular, choice. It provides ample ER% alongside decent base ATK, helping meet both stat requirements simultaneously. Its passive offers negligible value for Iansan, but the raw stats alone make it a reliable pick, especially for players who acquire it via standard wishes.
⚡ 2. Engulfing Lightning
Five-Star
This premier Burst-focused weapon is stellar for Iansan. Its massive ER% substat is ideal, and its passive converts excess ER% into bonus ATK%. This dual scaling means each point of ER% invested also boosts her ATK, making it dramatically easier to hit the coveted ~2700 ATK threshold for maximum buff potency without sacrificing energy needs.
🏆 1. Favonius Lance
Four-Star
Why is Favonius Lance Iansan's undisputed BiS? She easily hits her ATK cap with artifacts alone, making personal damage secondary. Fav Lance's ER% substat keeps her Burst ready, while its passive generates white particles for the entire team. This allows your main DPS (like Kinich or Arataki Itto) to drop their ER% needs entirely, building pure offensive stats instead. The resulting team-wide DPS increase far outweighs any minor personal damage loss—solidifying Fav Lance as her ultimate support weapon.
People Also Ask ❓
- Does Iansan need Energy Recharge or ATK% Sands?
Energy Recharge Sands are almost always essential unless using Engulfing Lightning or having exceptional ER% substats. ATK% Sands risk crippling Burst uptime.
- Is R5 Favonius Lance worth it for her?
Absolutely! Higher refinement significantly increases particle generation consistency, further easing team energy needs.
- Can Iansan use Kitain Cross Spear?
While craftable and offering EM/ER, its passive drains energy. This clashes directly with her need for reliable Burst uptime, making it generally inferior to Prototype Starglitter or Moonpiercer.
💎 Iansan Weapon FAQ
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Q: Is a 5-star weapon mandatory for Iansan?
A: Not at all! Her best weapon, Favonius Lance, is a 4-star. Strong free options like The Catch and Moonpiercer also exist.
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Q: How much Energy Recharge does Iansan typically need?
A: This varies heavily by team and particle generation. Aim for 180%-220% ER% as a baseline, adjusting based on team composition and weapon choice (Fav Lance users can run less).
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Q: Why is Engulfing Lightning ranked below Favonius Lance?
A: While Engulfing boosts her personal stats significantly, Fav Lance's team-wide energy generation provides a larger overall DPS increase by enabling hypercarries to build more damage.
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Q: Which craftable weapon is best if I don't have Fav Lance?
A: For general use: Prototype Starglitter (ER%). For Kinich teams specifically: Moonpiercer (ATK% buff passive).
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Q: Should I prioritize weapon level or talents first for Iansan?
A: Weapon level > Burst Talent > Skill Talent. Her buff scales heavily with weapon ATK and Burst level.
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