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Yuumi & Zeri vs Kai'Sa & Morgana

Bot Lane Matchup

Yuumi vs Kai'Sa (with Zeri & Morgana) BOT matchup tips: who wins, how to trade, wave control and common mistakes.

You

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Who Wins

Pre-6, your attachment to Zeri makes the lane heavily favorable for sustained poke since Kai'Sa cannot efficiently trade into Zeri's range while you heal through Morgana's Q chip damage; the only real threat is a Morgana W landing on Zeri when you are detached to proc your passive.
Post-6, Morgana's R is your biggest concern since it can root both Zeri and you if you are attached and she walks into it, so you must track Morgana's position constantly.

Your best pattern is to stay attached to Zeri during all trades, using Q to poke Kai'Sa when Zeri is kiting, and detaching only to proc your passive on minions when the lane is completely safe — your healing output attached is far more valuable than any damage you deal unattached.
Use W's adaptive force buff on Zeri before she engages to maximize her burst window.

You should not roam independently since your kit is entirely reliant on an ally to attach to, and leaving Zeri alone against Morgana's binding is a death sentence; however, if Zeri has kill pressure top or mid, you can attach to a roaming jungler and provide value elsewhere.
Only roam if Zeri has a clear health and positioning advantage that lets her safely farm alone.

Do not stay detached near Morgana for any extended period — her W binding on you is a free kill setup since you have almost no mobility unattached, and Kai'Sa can follow up instantly.
Always be attached or immediately re-attaching; your passive proc is not worth dying to a binding.

Created on 09/10/2026

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