The core of Genshin Impact's fighting system is elemental reactions. With seven unique elements that interact in different ways, mastering these reactions is essential for maximizing your team's damage potential. Among the game's roster of characters, Ineffa stands out as a five-star Electro polearm user who introduces a unique mechanic—the Lunar-Charged reaction. This special reaction significantly amplifies damage compared to standard elemental triggers, making Ineffa a powerful enabler for high-damage teams when built properly.

Talent Leveling Priority for Ineffa

When developing Ineffa's talents, you'll have three abilities to enhance: her Normal Attack, Elemental Skill, and Elemental Burst. However, her gameplay doesn't rely heavily on normal attacks, so you can leave this at level 1 or upgrade it minimally.

The most important talent to focus on is her Elemental Skill, as it not only scales her shield strength but also powers up Birgitta's offensive capabilities. After that, prioritize upgrading her Elemental Burst, which delivers impactful one-time damage during its activation. Maximizing these two abilities ensures you're getting the highest return on investment for both her support and reaction-driving roles.

Best Weapons for Ineffa

As a polearm wielder, Ineffa has access to a range of weapons suitable for both free-to-play and high-investment builds.

Fractured Halo (5★) – Ineffa's signature weapon is her best-in-slot choice. It provides a massive 66.2% Crit DMG bonus and grants ATK boosts after using her Skill or Burst. Additionally, when she generates a shield with her Skill, the weapon boosts all party members' Lunar-Charged reaction damage by 40%.

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Primordial Jade Winged-Spear (5★) – This standard banner weapon offers 22.1% Crit Rate and stacks ATK bonuses with each hit. At maximum stacks, it also boosts overall damage by 12%.

Calamity Queller (5★) – A strong alternative for ATK scaling, particularly effective if Ineffa frequently stays off-field. It also provides an elemental damage bonus after activating her Skill.

Staff of the Scarlet Sands (5★) – This option grants 44.1% Crit Rate and converts Elemental Mastery into additional ATK, synergizing well with reaction-based playstyles.

Ballad of the Fjords (4★) – When your team consists of three different elements, it delivers Crit Rate and up to 240 Elemental Mastery, making it the best four-star option.

Blackcliff Pole (4★) – Provides Crit DMG and boosts ATK after defeating enemies, though it's less reliable for boss fights.

Deathmatch (4★) – A versatile weapon that improves both Crit Rate and ATK, useful in both single-target and multi-enemy scenarios.

Dragon's Bane (4★): Enhances Elemental Mastery and damage against enemies affected by hydro. It is useful for teams who regularly initiate electro-hydro reactions.

Best Artifact Sets for Ineffa

Ineffa launched without a dedicated artifact set, so the best current options are those that complement her reaction-based kit:

Gilded Dreams – The strongest set overall. The two-piece bonus adds Elemental Mastery, while the four-piece effect grants additional ATK or EM depending on team composition. Since teams usually feature at least two non-Electro members, Ineffa gains significant benefits here.

Thundering Fury – A long-standing Electro set that now also enhances Lunar-Charged reaction damage by 20%, alongside a 15% Electro DMG boost. This makes it equally viable as Gilded Dreams.

Golden Troupe – If you want to maximize Birgitta's damage output, this set works but is harder to optimize due to its stat requirements.

Artifact Stat Priorities 

Building Ineffa can be challenging because she relies on multiple stats for optimal performance. The recommended stat focus is:

●Sands: ATK%

●Goblet: Elemental Mastery

●Circlet: Crit Rate or Crit DMG

●Substats: ATK% → Elemental Mastery → Crit Rate → Crit DMG

She needs at least 2,000 ATK to fully utilize her third passive and first constellation bonuses for Lunar-Charged damage. Aim for 300+ Elemental Mastery, around 70% Crit Rate, and as much Crit DMG as you can stack.

Recommended Team Compositions for Ineffa

The main function of Ineffa is to accelerate reactions and increase the output of electrodamage. Her most effective team setups focus on maximizing Lunar-Charged triggers:

Meta Team:

Ineffa + Raiden Shogun + Xilonen + Furina

This team leverages Raiden's high normal attack damage with Furina's Hydro application and Xilonen's healing to offset Furina's HP drain.

Alternative Team:

Ineffa + Clorinde + Yelan + Kaedehara Kazuha

Kazuha improves elemental reactions through resistance shredding and crowd management, Yelan offers Hydro support, while Clorinde serves as the on-field Electro DPS.

Free-to-Play Option:

Ineffa + Fischl + Xingqiu + Sucrose

Fischl supplies off-field Electro damage, Xingqiu applies Hydro consistently, and Sucrose swirls elements while reducing enemy resistances with the Viridescent Venerer set. If available, Kazuha can replace Sucrose for stronger grouping and buffs.

This setup works well even without five-star pulls, but if you want to unlock more characters and weapons without waiting for every event, you can buy Genshin Impact primogems at cheap prices from Z2U to speed up your team-building process.

Rotation Tips

Playing Ineffa effectively is straightforward. In each rotation, use her Elemental Skill and Burst early to set up shields and trigger reaction bonuses. Then swap to your main DPS to capitalize on Lunar-Charged damage windows. In F2P setups without a dedicated on-field carry, you'll rotate between characters frequently to maintain reaction uptime.

With the right build and teammates, Ineffa becomes a cornerstone for high-damage Electro teams, introducing a new reaction that rewards careful stat optimization and synergy-focused playstyles. Whether you're a high-spender chasing her signature weapon or a free player using four-star alternatives, Ineffa offers flexible, powerful options for nearly any roster.

Conclusion

In summary, Ineffa brings a fresh dynamic to Genshin Impact's ever-evolving combat system with her unique Lunar-Charged reaction and versatile Electro support capabilities. Mastering Ineffa's build and rotations ensures you can fully unlock her potential and dominate challenging content across Teyvat.