Ineffa, the exquisite mechanical housekeeper from Nod-Krai

Rarity	(5-Star)
Element	Electro
Weapon	Polearm
Best Role	Shield Support / Reaction Enabler
Stat Priority	ATK > CRIT > EM > ER
Tier	S (Lunar-Charged Specialist)

Ineffa is a highly advanced robot created by Aino and affiliated with the Clink-Clank Krumkake Craftshop in Nod-Krai. She introduces the Lunar-Charged mechanic, upgrading standard Electro-Charged reactions to deal critical hits and scale with team stats. She provides a sturdy Electro shield and summons "Birgitta" to dominate the battlefield.

Pros

Lunar-Charged: Transforms EC reactions to deal massive Crit DMG.
Role Compression: Shielder + Off-field DPS + Buffer.
Birgitta: 100% uptime on off-field Electro application via her summon.
Buffs team Elemental Mastery (Passive).
High personal damage scaling with ATK.

Cons

Shield strength scales on ATK (makes her squishy if shield breaks).
Requires Hydro teammates to function optimally.
Ascension materials (Glowing Hornshroom) are region-locked to Natlan.
Complex mechanics regarding "Moonsign" phases.

Quick Guide (TL;DR)

If you don't have time for the math, here is the cheat sheet.

Best Artifact: 4pc Silken Moon's Serenade (BiS for Lunar-Charged).
Alt Artifact: 4pc Gilded Dreams (General Reaction DMG).
Best Weapon: Fractured Halo (Signature).
Alt Weapon: Staff of Homa or Staff of the Scarlet Sands.
F2P Weapon: The Catch (R5) or Prospector's Shovel (Craftable).
Main Stats: SANDS: ATK% | GOBLET: Electro DMG | CIRCLET: CRIT.
Talent Priority: Elemental Skill > Elemental Burst > Normal Attack.
Top Team: Ineffa + Flins + Aino + Furina (Lunar Taser).

Pro Tip: Birgitta Positioning: Using her Skill summons Birgitta. Using the Skill again while she is active will reposition her to the target's location and reset her duration. Use this to keep your turret on mobile bosses!

Ascension & Talent Materials

Category	Material Name	Source
Ascension	Glowing Hornshroom	Natlan Region
Boss Drop	Secret Source Airflow Accumulator	New Natlan World Boss
Talent Books	Teachings of Conflict	Natlan Domain (Wed/Sat/Sun)
Common Mob	Whistles (Wooden/Metal/Golden)	Saurian Warriors

Talent Breakdown & Mechanics

Elemental Skill: Cleaning Mode: Carrier Frequency

The Shield: Activates "Optical Flow Shield Barrier" which absorbs damage based on Ineffa's ATK. It has 250% absorption vs Electro.
Birgitta Summon: Summons the "Multipurpose Smart Assistance Unit" (Birgitta).
Rocket Punches: Birgitta periodically fires AoE Electro projectiles at enemies. This is her main off-field damage source.
Reposition: Using Skill again while Birgitta is active moves her to the target location and resets her duration.

Elemental Burst: Supreme Instruction: Cyclonic Exterminator

Cost: 60 Energy | Cooldown: 15s
The Nuke: Ineffa launches Birgitta at the enemy, dealing massive AoE Electro DMG.
Team Buff: Grants "Parameter Permutation" to the team. Increases Elemental Mastery of the active character by 6% of Ineffa's ATK for 20s.
Marking: Applies "Calm Mark" to enemies hit, which explodes for matching elemental damage if they have an aura.

Passive: Moonsign Benediction - Assemblage Hub

Lunar-Charged: When a party member triggers Electro-Charged, it converts into Lunar-Charged.
The Benefit: Lunar-Charged deals increased damage based on Ineffa's ATK (0.7% increase per 100 ATK). Unlike standard EC, this reaction can CRIT and benefits from damage bonuses.

Talent Priority Order:

Elemental Skill (Level 10) - Shield strength and Birgitta damage.
Elemental Burst (Level 9) - Nuke damage and Buff.
Normal Attack (Level 1) - Ignore.

Stat Requirements & ER Thresholds

Ineffa scales purely on ATK for shielding, damage, and buffs. ER is secondary but important for C2/C4 uptime.

Team Context	Weapon	ER Requirement
Double Electro (w/ Fischl)	Signature / Homa	120% - 130%
Solo Electro (Hyperbloom)	Favonius Lance	150% - 160%
Solo Electro (DPS)	Signature	180% - 200%

Substat Priority:

ATK% (Priority #1 - Aim for 2500+)
CRIT Rate / CRIT DMG (For Lunar-Charged crits)
Energy Recharge (Until comfortable)
Elemental Mastery (Secondary scaling for reactions)

Best Artifacts Comparison

Set Name	Role	Reasoning
4pc Silken Moon's Serenade	BiS	Specifically designed for Lunar reaction supports. Buffs Lunar-Charged DMG significantly and provides ATK/EM.
4pc Gilded Dreams	Reaction DPS	Provides massive ATK and EM buffs based on team composition. Great for personal damage in mixed teams.
4pc Thundering Fury	CD Reduction	Reduces Skill cooldown for 100% Birgitta uptime without relying on C2 refresh. Also buffs reaction damage.

Weapon Rankings

Weapon	Type	Performance	Notes
Fractured Halo	CRIT DMG	S+	Signature. High Base ATK (608). Buffs ATK by 24% after Skill/Burst. Grants "Electrifying Edict" to team (+40% Lunar-Charged DMG) when shielded.
Staff of Homa	CRIT DMG	S	Universal stat stick. High Crit DMG is excellent since Lunar-Charged can crit. HP passive adds survivability.
Favonius Lance	ER%	S (Support)	Best if you are struggling with energy for the team. Ineffa triggers crits easily off-field.
The Catch (R5)	ER%	A (F2P)	Boosts Burst Crit Rate and DMG. Great for C2 Nuke playstyle.
Prospector's Shovel	ATK%	A (Craftable)	Natlan Craftable. Buffs Skill DMG based on Max HP (?). (Stats based on leaks, may vary).

Constellation Value

Ineffa is functional at C0, but C1 and C2 enable her true support potential.

C1: Rectifying Processor - (Buff) When Shield is active, team gains "Carrier Flow Composite" effect: Increases Lunar-Charged DMG by 2.5% per 100 ATK (Max 50%). Massive team buff.
C2: Support Cleaning Module - (Nuke) Burst hits inflict "Punishment Edict". Delayed explosion deals 300% ATK as AoE Lunar-Charged DMG. Also grants shields to nearby party members.
C4: The Edictless Path - (Energy) Restores 5 Energy when team triggers Lunar-Charged. Solves ER issues completely.
C6: A Dawning Morn for You - (DPS) Triggers extra AoE attacks (135% ATK) when C1 effect is active. Turns her into a rapid-fire sub-DPS.

Verdict: C1 is the best stopping point for support. C2 adds significant personal damage.

Top Team Compositions

1. Lunar Taser (Electro-Charged)

Main DPS: Flins / Clorinde
Sub-DPS: Ineffa
Hydro: Aino / Furina
Flex: Kazuha / Ororon

Why it works: Ineffa's passive converts standard Electro-Charged into the stronger Lunar-Charged reaction. Flins or Clorinde drive the reaction, while Aino/Furina provide Hydro. Ineffa shields and buffs the reaction damage.

2. Hyperbloom Engine

Trigger: Ineffa (EM Build)
Dendro: Nahida
Hydro: Xingqiu / Yelan
Flex: Alhaitham / Baizhu

Why it works: While Lunar-Charged is her specialty, Ineffa's consistent off-field Electro application makes her a viable Hyperbloom trigger if you build her with full EM. Her shield protects the active character from Dendro Core self-damage.

Rotations & Combos

Standard Support Rotation:
Ineffa E (Shield/Summon) > Ineffa Q (Buff/Nuke) > Hydro Support > Main DPS

Tip: If Birgitta (the robot) is already on field, casting E again will teleport her to the new location and reset her duration. Use this to reposition if enemies move away.

Frequently Asked Questions

Is she better than Fischl?
For raw single-target damage? No, C6 Fischl is still queen. But Ineffa offers Shielding and buffs reaction damage (Lunar-Charged), providing defensive utility that Fischl lacks.

Does Lunar-Charged scale with EM?
Yes. Ineffa's passive states that her ATK increases the base damage, but as a transformative reaction, it also scales with the triggering character's Level and Elemental Mastery. Balancing ATK and EM is key.

Data Source: Version 5.8 Beta Leaks. Last Updated: June 2025

Ineffa Guide: The Definitive Build & Analysis