Kazuha is among the best and many wanted characters in Genshin Impact. Soon, travelers may have a chance to pull him because he will return in less than a week together with his rerun banner within the second phase of version 3.7. On that note, building this wandering samurai could be tricky because players usually desire a lot of Elemental Mastery stats on him to improve his Elemental Damage bonus buff.

At the same time frame, Kazuha may also need a good amount of ER for smooth rotations. This begs the question, which F2P weapon should fans decide for him - Favonius Sword or Iron Sting? This Genshin Impact article discusses these weapons' stats and which may be more effective on Kazuha.

Genshin Impact 3.7: Which weapon is much better for Kazuha, Favonius Sword, or Iron Sting?

Favonius Sword

First, when it comes to the two best F2P weapons for Kazuha in Genshin Impact. The first is the Favonius Sword, which supplies up to 61.3% Energy Recharge at level 90 and extra particles from the passive. It is a solid selection for Kazuha when the overall burst price of the entire party is big and there are energy issues. Using Favonius Sword provides very smooth rotations and allows characters to loop.

Iron Sting

The major reason why Iron Sting is among the best choices for Kazuha is due to the Elemental Mastery the weapon provides from the secondary stat. As earlier mentioned, he needs a large amount of EM since his additional damage bonus is directly according to his EM. Thanks to his passive skill, he is able to buff 0.04% of his total EM being an Elemental Damage bonus to any or all party members.

Iron Sting provides 165 EM from the secondary stat, meaning Kazuha can change it right into a 6.6% Elemental Damage bonus for the whole team, the industry's huge buff. Additionally, the passive from the weapon also increases its wielder damage by 6% at R1 and as much as 12% at R5, essentially helping the Anemo character's personal damage too.

Conclusion

Iron Sting is overall the greater option when it comes to providing more buffs and damage than Favonius Sword in teams that don't require a large number of rotations. However, building some ER on Kazuha via artifact sub-stats would be recommended to ensure that he has a minimum of 150% ER. Another option would be to build a battery with another unit within the team.

At the same time frame, Favonius Sword could be a good selection for teams with energy issues with no battery unit apart from Kazuha. Ultimately, everything comes down to the comp each Genshin Impact player uses.