Character Guide — Eris

Eris is a limited unit in collaboration with Mushoku Tensei! She is a Physical Fire DPS who offers a little bit of utility with her physical vulnerability debuff. She is very powerful in single target scenarios while also decent in AoE scenarios.
ATK374
HP1848
DEF-
CR10
CDMG50%
Base Stats [Level 100]

Eris is a limited unit in collaboration with Mushoku Tensei! She is a Physical Fire DPS who offers a little bit of utility with her physical vulnerability debuff. She is very powerful in single target scenarios while also decent in AoE scenarios.

Check out my other Character Guides:

Strengths and Weaknesses

Really strong damage, with no downtime. Her single target damage is premium.

Eris has anti-synergy with chains, which tends to be a massive amplifier in Fiend Hunt.

Costumes

Eris has 2 limited costumes, both of which deal impressive damage. Esteemed Adventurer deals boosted damage to enemies with less than 7 chains applied, while Your Very Own Cat applies physical vulnerability to her main target.

Esteemed Adventurer

Very
Front

Crimson Flash
SP ◆ 4 — CD ● 3 Turns
Deal Physical DMG based off of 300% of ATK. If the target has 7 or less chains applied, deal Physical DMG based off of 600% of ATK instead.

Skill Potential 1
DMG +50%

Skill Potential 2
Boosted DMG +100%

Skill Potential 3
Boosted DMG +100%

+1+2+3+4+5
SP CostPhysical DMG
Boosted DMG
Physical DMG
Boosted DMG
Physical DMG
Boosted DMG
Physical DMG
Boosted DMG
4 ▸ 3300% ▸ 375%
600% ▸ 675%
375% ▸ 450%
675% ▸ 750%
450% ▸ 525%
750% ▸ 825%
525% ▸ 600%
825% ▸ 900%
Costume Designs

This costume has ridiculous damage when her condition is met (the non-boosted damage matches the likes of Liatris and Loen). She has a worse pattern, however, since skip is simply premium. On top of that, her condition makes her anti-synergistic to chain stackers like Celia. This is especially relevant in Fiend Hunt where chains are a massive source of damage.

This downside isn't as relevant in other PvE content, where you likely won't have the time to set up a massive chain stack on your enemies. In these cases, she is simply above rate in damage.

Key Upgrades: +1, Boosted DMG upgrades add up.

Your Very Own Cat

Very
Front

Doldia Tribe's Secret Technique
SP ◆ 6 — CD ● 3 Turns
Attack 5 Times, each attack deals Physical DMG based off of 30% of ATK. The main target's Incoming DMG is increased by 100% for 4 turns.

Skill Potential 1
DMG +20%

Skill Potential 2
SP Cost -1

Skill Potential 3
Range Upgrade

+1+2+3+4+5
SP CostVulnerabilityPhysical DMGVulnerabilityPhysical DMG
6 ▸ 5100% ▸ 125%30% ▸ 45%125% ▸ 150%45% ▸ 60%
Costume Designs

This costume deals solid damage, while also dealing massive damage to her main target (Note! The physical vulnerability is only applied to the main target of this skill). This also sets up her first costume to deal even more damage. The vulnerability isn't very relevant against a wave of smaller enemies, since you would rather have vulnerability on everyone, but when you need to focus down a single elite enemy, this costume combined with the first is very powerful.

You definitely want to get her range upgrade for extra AoE.

Key Upgrades: +1, Skill Potential 2 and 3, DMG upgrades add up.

Building Eris

Simply build Eris to maximize her damage.

Eris' Sword
Exclusive Stat — 45% ATK
Correct Main Stats — ATK + CDMG
Good stat stick for Eris, it's not necessary, but this is a limited weapon.

Bond Potential

HP154
ATK52%
CDMG47.2%
Esteemed Adventurer
ATK80
DEF5%
Fire DMG30%
Your Very Own Cat

Use Esteemed Adventurer bonds for general PvE content and use Your Very Own Cat bond if you want a slight edge against wind enemies.

Optimal Build [PvE]

or

Optimal Substat Spread — 4 ATK% substats + 11 CDMG substats

Build DEF or MRES based on the enemies you're facing.