Case File #iroi
S TierIroi Build Guide
Iroi is an S-tier Anima Support who keeps teams alive with healing, revivals, and teamwide buffs. She is best paired with aggressive main DPS characters that need extended field time, and her signature build turns her healing into extra damage for everyone. ATK%, Cycle Intensity, and Healing are her most important stats.
Strengths
- Strong teamwide healing and a revive, making teams much safer.
- Can provide teamwide ATK and DMG buffs through her kit and best Arc/Cartridge.
- Works well with aggressive on-field DPS like Shinku.
- Can contribute decent Anima damage when built with ATK and CRIT stats.
Weaknesses
- Support output scales heavily with ATK, so needs strong ATK investment.
- Limited personal damage compared to dedicated DPS units.
- Best Arc and Cartridge options are limited or rare.
- Requires Energy and Imagination to maximize support uptime.
Best Arcs
Increases ATK by 16%. When the wearer performs healing, increases the wearer's Anima DMG by 30% and all allies' DMG by 15% for 20s.
Increases Break Intensity by 60. Seals Arc: Black Tome with two chains; unleashes chains when allies cast Support Skills. Black Tome deals Chaos DMG and increases wearer's Chaos DMG to designated enemies.
Increases Anima DMG dealt by the wearer's Redirect Skill and Ultimate by 20%.
Best Cartridge
Epic (2): Charge Efficiency +12%. Legendary (4): Increases all allies' ATK by 15% for 20s after the wearer casts Ultimate.
Best Main Stat: ATK%
- Prioritize ATK% for the main stat to maximize healing and support.
- Substats: ATK%, ATK, Cycle Intensity, CRIT Rate, CRIT DMG.
Module Layout
Required Modules
Bonus: Type III (+10% ATK)
Total Bonus: +60% ATK
Substat Priority
- This layout activates Speedy Hedgehog's 4-piece effect.
- All Type III Modules maximize ATK for Iroi's healing and buffs.
Best Teams
Focuses on triggering Charge consistently so Shinku can stay on-field and deal massive damage. Iroi provides healing and buffs to keep Shinku safe during extended rotations.
Shinku
Main DPS
Needs extended field time; benefits greatly from Iroi's sustain.
Hathor
Sub-DPS
Quickly triggers Remora and contributes strong personal damage.
Zero
Sub-DPS
Cycle enabler that keeps Esper Cycles active.
Iroi
Support
Main offensive support; heals and buffs the team.
Alternatives
Use Iroi's Skill to build Imagination and apply healing early.
Swap to Esper Zero to set up Esper Cycles.
Swap to Hathor to apply Remora.
Bring in Shinku to trigger Charge and build Defiant Spirit, then enter Surging Crimson.
Keep Shinku on-field while Iroi's healing and buffs are active.
- This team maximizes Shinku's damage potential through Charge and Iroi's sustain.
Uses Nanally as the main DPS with Blossom reaction damage. Iroi provides healing and buffs while Jiuyuan groups enemies and Esper Zero enables cycles.
Nanally
Main DPS
Deals the majority of team damage with AoE Vita Pistils.
Jiuyuan
Sub-DPS
Adds damage, Anima pressure, and grouping for easier AoE.
Zero
Sub-DPS
Cycle enabler that helps trigger Blossom.
Iroi
Support
Keeps team healthy and maintains safer rotations.
Use Iroi and Esper Zero's Redirect Skills to trigger Blossom and create Vita Pistils.
Use Jiuyuan to group enemies and maintain Anima pressure.
Let Nanally deal AoE damage with Vita Pistils.
Iroi sustains the team and provides buffs throughout the fight.
- This team focuses on reaction damage and smooth team cycling.
Skill Priority
Collaboration (Basic Attack)
Builds Imagination through Basic Attacks and access to Daydream. Less important since Iroi is usually played as a Support.
Bang! (Support Skill)
Deals Anima DMG, heals allies, and stacks Imagination when swapped in. Worth leveling after her Ultimate and Skill.
3.8-Billion-Year Mirage (Ultimate)
Main sustain tool; provides continuous healing, can deal Anima DMG, and revive an ally. Build this first for maximum support uptime.
Future Self Continuity (Skill)
Provides teamwide healing, ATK buff, enemy grouping, and Imagination buildup in one skill. Essential for her rotation.
Awakening Priority
Trait: Transparent
Adds another support effect to Sympathetic Nerves, increasing allies' ATK based on Iroi's Base ATK for 20s. Great for her ATK-scaling support build.
Iterated Prisoner's Dilemma
Builds Imagination even while off-field and increases Imagination gain efficiency. Smoother support rotations.
Strategy: Tit for Tat
Deals off-field damage whenever a teammate casts their Skill. Valuable in teams with skill-heavy DPS.
Trait: Cooperative
Improves healing toward allies below 50% HP. Strong comfort option for extended fights.
Trait: Retaliatory
Increases the ATK Ratio of Iroi's lambs while allies are in Regression state. Situational but useful in Regression teams.
Trait: Forgiving
Gives revived characters HP, Cycle Energy, and Ultimate Energy after Iroi's Ultimate. Clutch utility but inconsistent.
How to Play
Start with Iroi's Skill to heal, group enemies, and build Imagination. Use Basic Attacks or Support Skills to stack more Imagination, then cast her Ultimate for healing and buffs. Swap back to the main DPS to continue the damage rotation while Iroi's support effects are active.
Rotations
- 1Iroi Skill → Esper Zero to set up Blossom → Hathor to apply Remora → Shinku to trigger Charge → Build Defiant Spirit → Enter Surging Crimson → Continue Shinku's damage rotation → Repeat
Tips
- Build Imagination with Basic Attacks after using her Skill to empower her Ultimate.
- Use Daydream and Lucid Dream for extra Anima damage before swapping out.
- Cast Ultimate immediately when available to keep the team healed and buffed.
- Return to Iroi whenever the team needs healing or buff support.