What is the best build for Yuumi Support in Patch 16.5?

The optimal Yuumi Support build starts with Spellthief's Edge and Health Potion. Core items are Blackfire Torch, Rylai's Crystal Scepter, Morellonomicon with Sorcerer's Shoes. Run Flash and Ignite as summoner spells.

What runes should I use on Yuumi Support?

Yuumi Support runs Summon Aery as the keystone in Sorcery with Manaflow Band, Transcendence, and Scorch. Secondary tree is Resolve with Second Wind and Revitalize.

Is Yuumi good in Patch 16.5?

Yuumi is B tier in Support with a 46.6% win rate in Emerald+ ranked games on Patch 16.5, according to OP.GG data. Yuumi requires more skill investment to succeed with.

What are Yuumi's power spikes in Support?

Yuumi hits a significant power spike when completing Blackfire Torch. The two-item spike with Blackfire Torch and Rylai's Crystal Scepter is when Yuumi becomes a major threat. Skill priority is Q > W > E, so maxing the primary ability first accelerates early-game power.

When should I pick Yuumi in ranked?

Yuumi is a B tier Support pick in Patch 16.5 with a 5.1% pick rate. Yuumi works well as a Support and Mage and fits team compositions that need magic damage and zone control.

What summoner spells should I run on Yuumi Support?

The recommended summoner spells for Yuumi Support are Flash and Ignite. This is the highest win-rate combination in Emerald+ ranked games on Patch 16.5.

What is Yuumi's hardest matchup in Support?

Nami is one of the toughest Support matchups for Yuumi. Nami is S+ tier with a 51.8% win rate. Use Meridian Zero's matchup analysis tool to get detailed trading patterns and win conditions for Yuumi vs Nami.

Yuumi Support Guide — Patch 16.5 Builds, Runes & Matchups

Yuumi is a B tier Support champion in League of Legends Patch 16.5 with a 46.6% win rate in Emerald+ ranked games, according to OP.GG data. The optimal Yuumi build starts with Spellthief's Edge and Health Potion, with core items being Blackfire Torch, Rylai's Crystal Scepter, Morellonomicon and Sorcerer's Shoes. For runes, run Summon Aery from Sorcery with Resolve as the secondary tree. Skill priority is Q > W > E. Yuumi is best played with Flash and Ignite as summoner spells. The most challenging matchup in Support is Nami (S+ tier, 51.8% win rate).

Source: OP.GG Emerald+ ranked data, Patch 16.5 · Last updated: March 2026 · Meridian Zero Analytics

Best Build — Patch 16.5

Start Spellthief's EdgeHealth Potion

Core Blackfire TorchRylai's Crystal ScepterMorellonomicon

Boots Sorcerer's Shoes

Spells FlashIgnite

Priority Q > W > E

Expert Tips

Anchor yourself to the most mobile ally (Hecarim, Ezreal, Kai'Sa) for reliable movement.
Zoomies (E) heal and speed buff: use it on the carry in a fight, not after they're already at full HP.
You're the only support who is untargetable while attached. Never detach in a fight unless the host is dead.

Support Matchups — Difficulty by Opponent

Opponent	Tier	Difficulty
Nami	S+	Hard	Analyze →
Bard	S+	Hard	Analyze →
Braum	S+	Hard	Analyze →
Thresh	S+	Hard	Analyze →
Karma	S+	Hard	Analyze →
Taric	S	Hard	Analyze →
Rakan	S	Hard	Analyze →
Janna	S	Hard	Analyze →
Brand	S	Hard	Analyze →
Senna	S	Hard	Analyze →
Seraphine	S	Hard	Analyze →
Pyke	S	Hard	Analyze →

Runes — Patch 16.5

KeystoneSummon Aery

Primary TreeSorcery

Slot 1Manaflow Band

Slot 2Transcendence

Slot 3Scorch

Secondary TreeResolve

Secondary 1Second Wind

Secondary 2Revitalize