Best Weapons for Iansan in Genshin Impact (5.5 Update)
With Iansan’s arrival in Genshin Impact Version 5.5, choosing the right weapon is crucial to unlocking her full potential as a support character. Since her ATK buffs scale with her total ATK and she relies on consistent Elemental Burst uptime, her weapon choice significantly impacts her effectiveness.
Iansan benefits most from high ATK and Energy Recharge (ER) weapons, though those with team-wide buffs are also excellent. Players have options ranging from premium 5-star weapons to F2P-friendly 4-star alternatives, with recommended stats around:
150–200% ER (varies by team comp and C1 access)
2500–3000 ATK (C5 cap)
Below are the best polearms for Iansan, ranked by performance.
5. Skyward Spine
Base ATK: 674
Secondary Stat: 36.8% Energy Recharge
Passive: Increases Crit Rate by 8%, Normal ATK SPD by 12%, and has a 50% chance to trigger a vacuum blade (40% ATK as AoE DMG every 2s).
Why It’s Good:
High base ATK helps reach ATK thresholds.
ER substat ensures smoother Burst uptime.
Downside:
Passive is not ideal for Iansan’s support role.
Outclassed by more synergistic 4-star options.
4. Favonius Lance (Best F2P Battery Option)
Base ATK: 565
Secondary Stat: 30.6% Energy Recharge (R5: 100% chance to generate Energy particles on Crit).
Why It’s Good:
Team battery effect improves energy flow.
Great for low-energy teams or without dedicated batteries.
Build Tip:
Use a Crit Rate circlet to trigger passive consistently.
Compensate with ATK Sands if ER is sufficient.
3. Tamayuratei No Ohanashi (Best F2P ATK Booster)
Base ATK: 565
Secondary Stat: 30.6% Energy Recharge
R5 Passive: **+40% ATK & +10% Movement SPD** for 10s after Elemental Skill.
Why It’s Good:
Massive ATK boost helps hit 3000 ATK cap (C5+).
Free event weapon (5.4 update), making it highly accessible.
Best For:
Players prioritizing Iansan’s personal ATK over team energy.
2. Engulfing Lightning (Best ER-to-ATK Conversion)
Base ATK: 608
Secondary Stat: 55.1% Energy Recharge
Passive: Converts ER into ATK (up to 80%) and grants **+30% ER for 12s** after Burst.
Why It’s Great:
Balances ER and ATK perfectly for Iansan.
Smoother rotations with extra ER after Burst.
1. Calamity Queller (Best-in-Slot for Max ATK)
Base ATK: 741 (Highest among polearms)
Secondary Stat: 16.5% ATK
Passive: Off-field ATK stacking (up to **+38.4% ATK** when swapped out).
Why It’s #1:
Unmatched ATK scaling for max buff potential.
Perfect for quickswap teams (double ATK bonus off-field).
Build Tip:
Prioritize ER in artifacts (since weapon lacks ER).
Final Verdict
Best Overall: Calamity Queller (for max ATK)
Best F2P Option: Tamayuratei No Ohanashi (ATK focus) or Favonius Lance (Battery)
Best ER-to-ATK Hybrid: Engulfing Lightning
Optimize Iansan’s build by balancing ATK and ER based on team needs!
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