Challenge Ei to a Genius Invokation Duel in Genshin Impact. See where to find Ei, how to beat Ei, recommended deck, and all rewards here!

How to Unlock Ei TCG Battle

Invite in The Cat's Tail

You can repeatedly invite Raiden Ei to a Genius Invokation battle once you reach Player Level 2! You must use a Match Invitation Letter when inviting her for the first time.

How to Increase Player Level

How to Beat Ei in Genius Invokation

Best Deck Against Ei

Recommended Character Cards

Main Character Cards
Kamisato Ayaka	Mona	Keqing

Strategy Against Ei's TCG Deck

Stop Bursts Using Fozen

In order to win this duel, make sure that Ei will never have the opportunity to use her Burst at all by Freezing her in her tracks. Your main point of counter-insurgency is Mona's Elemental Skill and Ayaka's Cryo abilities.

It would also be wise to have Keqing in the party for emergency purposes. You can either start the battle with Mona to set up Hydro reactions, or start with Keqing's Elemental Skill to put a Lightning Stiletto in your deck for future use.

As for Support Cards, it's good to have cards that enable quick and free swapping like Leave It to Me! and Changing Shifts. It will also be wise to manage your Energy using cards like Calx's Arts and Starsigns.

Ei Duel Information

Genius Invokation Duel Information

Ei
Challenge Type	Character Invite Challenge
Main Element Used
Weak Against
Special Rule	No Special Rule

If it's only a few games... by all means.

Ei's TCG Deck

Ei's Character Cards

Main Character Cards
Raiden Shogun	Kujou Sara	Bennett

Ei's strategy can be summarized in two words: Elemental Burst. With each of her cards requiring only 2 Energy, and her own Burst giving off 2 Energy to all her other cards, her main strategy is to throw Bursts one after the other.

Ei Duel Location

Where to Find Ei

Find Ei in The Cat's Tail, Mondstadt

Ei can be fought as a Character Invite Challenge, which means you have to go to The Cat's Tail tavern in Mondstadt City to find and challenge them!

Likely to Show up in Weekly Guest Challenges

Ei is also likely to show up as one of the Weekly Guest Challenges at The Cat's Tail tavern!

Weekly Guest Challenge Guide

Duel Objectives and Rewards

All Objectives and Rewards

Objective	Rewards
Achieve victory	Raiden Shogun Card x1
Achieve victory within 6 Rounds	Wishes Unnumbered Card x1
Win with less than 2 characters defeated	Wishes Unnumbered Card x1

Serious Showdown

Objective	Rewards
Achieve victory	Lucky Coin x1000

Genshin Impact Related Guides

TCG Character and NPC List

List of Character Invite Challenge Duels

List of Character Invite Challenge Duels
Yanfei	Candace	Kaedehara Kazuha	Amber
Venti	Nahida	Tartaglia	Hu Tao
Yae Miko	Xiao	Shenhe	Zhongli
Ei	Ayato	Tighnari	Arataki Itto
Kujou Sara	Kokomi	Eula	Klee
Beidou	Diluc	Diona	Jean
Keqing	Ganyu	Kaeya	Chongyun
Kamisato Ayaka	Barbara	Xingqiu	Mona
Xiangling	Bennett	Yoimiya	Razor
Cyno	Noelle	Collei	Ningguang
Fischl	Sucrose

Duel Types and Location Guides

All Duel Types and Guides
Co-Op Matches	Weekly Guest Challenges
Character Invitations	Ascension Challenges
Tavern Challenges	Open World Matches

Genius Invokation Gameplay Guide

Genius Invokation TCG Guide