MementoMori's Eureka is an SR (Limited) character available in the Prayer of Fleeting and Invocation of Chance. Read on to learn more about her main uses and if you should pull her.

Should You Pull for Eureka?

Pull for Damage Decrease Debuff

Eureka is a debuffer with active skills that can potentially deal with massive damage, especially when combined with [X Mark] debuff. [X Mark] decreases the damage an afflicted target deals by 10%. Eureka also gives a [Shield] to the ally with the highest ATK when she gets defeated, and if that [Shield] falls on an Azure ally, this ally will be given a 50% ATK buff.

Her Unique Weapon skills improve her active skills and give herself [Multi-Barrier] to increase her durability.

She Works Well Even at One Merge

Eureka can be a good choice if you need a character to remove debuffs from your team quickly. She also offers an Azure soul ally a 50% ATK buff when granted a [Shield]. You can use Eureka for the Azure Tower with this buff.

If you are willing to add more copies to awaken her, this will make her active skills more powerful. However, based on her passive skill, which had a buff given to an ally with the highest ATK, she may be expected to be defeated on the first turn. So, making her stronger only really helps her [Shield] and lets her survive a few more hits.

While she is good at removing debuffs, she can be fragile.

How to Unlock LR Rarity

Dispel Debuff

Eureka's On To New Frontiers passive skill allows her to remove/cleanse debuffs from herself and two allies with the highest ATK. This skill doesn't have a cooldown. This can help these allies continue dishing out damage or inflicting debuff against their enemies without being hindered.

MAG and Debuff ACC Arcana

If you run a team that needs MAG or Debuff ACC boost, getting Eureka for her Lepus's Detection arcana can be an option. This gives Chara lvl x 15 MAG at SR and 1.5% Debuff ACC at UR.

Pull If You Like Her Story

Eureka is a child fascinated with maps. She dreams of exploring the uncharted parts of the world. She believes the existing maps must be completed, and undiscovered lands are beyond the known world. She is passionate about discovering these unknown territories and creating a map that accurately represents the world.

Eureka Profile and Memories

When Not To Pull For Eureka

You Don't Want Squishy Characters

Eureka can be susceptible to damage, especially without her Unique Weapon. You may need to rework your team to accommodate her or build a new team entirely for her. If you prefer to avoid squishy characters, Eureka may not be for you.

You Are Waiting for Other Characters to Come Out

If you already have character reruns that you are waiting for, pulling for Eureka may be a low priority. Despite her being an Azure character, which meant fewer copies needed to awaken her, you may need to draw characters that you can use to improve your team.

When You Are Just Starting

As a beginner, you should focus on getting characters to help you with your Main Quest, so pulling for Eureka might be irrelevant to you now. However, if you like Eureka's aesthetic and skill, feel free to draw for her.

Eureka Builds: Best Runes and Team Comps

Will You Pull for Eureka?

Where to Pull for Eureka

Prayer of Fleeting Gacha

Start Date	November 15, 2024
Duration	00:30 November 15, 2024 - 22:29 November 28, 2024 (UTC-7) 08:30 November 15, 2024 - 06:29 November 29, 2024 (UTC+1)
Event Details	Eureka appears in the Prayer of Fleeting!

Eureka is guaranteed to appear on the 100th pull. If you want to secure Eureka, prepare 30,000 Diamonds for 100 gacha pulls.

How to Efficiently Collect Diamonds

Invocation of Chance

Invocation of Chance
Name	Invocation of Chance
Duration	-
Status	Always Active
Main Feature	Character you set and Items will appear!
How to Unlock	Must clear Main Quest 11-28 or VIP 12

Eureka will be available in the Invocation of Chance as a Character of Chance from November 15, 2024, until November 28, 2024.

Invocation of Chance Banner Guide

Premier Gifts for Eureka

Witch's Gift

Eureka has her own limited Witch's Gift available from November 15, 2024, until November 28, 2024. Witch's Gifts are gifts players can obtain when they reach a particular rarity for Eureka.

Each set of rewards players have unlocked had corresponding purchaseable items. Rewards include buffs, Witch's Letter, Ticket of Souls, and Rune Tickets.

Recommended Premium Packs

Eureka Basic Info

Eureka
PvE Rank	PvP Rank

Base Rarity	Soul	Type	Role
SR (Limited)	Azure	Sorcerer	Attacker/Debuffer

MementoMori Related Links

List of All Gacha Banners

List of Gacha Banners (Invocations)
Recommended Gacha Banners
Prayer of The Fleeting	Prayer of The Cursed
Prayer of Friendship	Prayer of Soul
Prayer of Beginnings	Invocation of Chance
Invocation of The Stars' Guidance

List of Gacha Simulators
Prayer of the Cursed Simulator