Champions

LIVEPatch 26.19Summoner’s Rift

Champions · ID 350

Yuumi

the Magical Cat

Abilities

Select forms, weapons or follow-up abilities. Empowered and evolved effects also appear in the ability descriptions.

Stats for ability calculations

Enter your current stats. Verified formulas show both the result and scaling; missing inputs leave the formula visible. Fields marked "in-game value" use a value supplied from the game, not a derived calculation. Damage is before mitigation.

Ability power

PFeline Friendship

When Yuumi's Attacks and Abilities strike champions, she heals herself for (20–110 (Lv1–18) + 30% Ability power) health. If Yuumi Attaches to an ally within 4 seconds, they are healed as well. This effect has a 20（Lv1–13: 20–8 / Lv14–20: 8） second Cooldown.

While Attached, Yuumi gains Friendship with her ally whenever they kill a champion or minion. The ally with the most Friendship becomes her Best Friend and grants Yuumi bonus effects to her Abilities while she is Attached to them.

The heal will automatically trigger if Yuumi is already Attached to an ally.

QProwling Projectile

Yuumi summons an errant missile that deals (60 + 20% Ability power) magic damage to the first enemy and Slows the target for 20%.

If cast while Attached, Yuumi can control the missile using her mouse for a short period before it accelerates in a straight line. The accelerated missile deals (80 + 30% Ability power) magic damage and Slows the target for 50% for 2 seconds, instead.

Best Friend Bonus: Prowling Projectile's Slow will always be enhanced and hitting an enemy champion also grants them (5% Ability power + 10) magic damage On-Hit for 5 seconds.

The bonus On-Hit damage can be increased by 75% based her ally's Critical Strike Chance.

Cooldown6.5 sCost50TargetingLocation

View source description

Yuumi summons an errant missile that deals {{ totalmissiledamage }} magic damage to the first enemy and Slows the target for {{ slowamount }}%. If cast while Attached, Yuumi can control the missile using her mouse for a short period before it accelerates in a straight line. The accelerated missile deals {{ totalmissiledamageempowered }} magic damage and Slows the target for {{ empoweredslowamount }}% for {{ empoweredslowduration }} seconds, instead. Best Friend Bonus: Prowling Projectile's Slow will always be enhanced and hitting an enemy champion also grants them {{ onhitdamagecalc }} magic damage On-Hit for {{ buffduration }} seconds. The bonus On-Hit damage can be increased by {{ allycritchancemaxamp*100 }}% based her ally's Critical Strike Chance.{{ spellmodifierdescriptionappend }}

WYou and Me!

Passive: While on her Best Friend, Yuumi gains an additional 4% Heal & Shield Power and her ally also restores (3 + 3% Ability power) health On-Hit .

Active: Yuumi dashes to an ally champion and Attaches to them. While Yuumi is Attached, she follows her partner's movement and is Untargetable except from towers.

Immobilizing effects on Yuumi place this Ability on a 5 second Cooldown.

Cooldown10（Lv1–5: 10 / Lv6–10: 5 / Lv11–20: 0） sCost0Range700

View source description

Passive: While on her Best Friend, Yuumi gains an additional {{ healandshieldpower*100 }}% Heal & Shield Power and her ally also restores {{ healthonhit }} health On-Hit . Active: Yuumi dashes to an ally champion and Attaches to them. While Yuumi is Attached, she follows her partner's movement and is Untargetable except from towers. Immobilizing effects on Yuumi place this Ability on a {{ ccattachlockout }} second Cooldown.{{ spellmodifierdescriptionappend }}

EZoomies

Yuumi shields herself, blocking (65 + 40% Ability power) damage and gains (25 + 8% Ability power)% Attack Speed for 3 seconds. While the shield persists, the target also gains 20% Move Speed.

If Yuumi is Attached, this Ability affects her ally instead and also restores 20 Mana to them, increased by up to 100% based on the target's missing Mana.

Cooldown10 sCost80TargetingSelf

View source description

Yuumi shields herself, blocking {{ totalshielding }} damage and gains {{ totalattackspeed }}% Attack Speed for {{ msduration }} seconds. While the shield persists, the target also gains {{ msamount }}% Move Speed. If Yuumi is Attached, this Ability affects her ally instead and also restores {{ manarestore }} Mana to them, increased by up to {{ maxmanapercincrease*100 }}% based on the target's missing Mana.{{ spellmodifierdescriptionappend }}

RFinal Chapter

Yuumi channels for 3.5 seconds, launching 5 magical waves affecting both teams. If initially cast while Attached, Yuumi can steer the waves to follow her mouse.

Enemies struck are dealt (75 + 25% Ability power) magic damage and Slowed by 10% for 1.25 seconds, increased by 10% per wave hit.

Ally champions are healed for (30 + 12% Ability power) health per wave. Excess healing is converted to a Shield instead.

Best Friend Bonus: For her Best Friend, the heal is increased to ((30 + 12% Ability power) × Lv1–6: 1.3 / Lv7–12: 1.35–1.6 / Lv13–20: 1.6) health.

Casting You and Me! will locks the waves in the current direction. Yuumi can move and cast Zoomies while channeling.

Cooldown120 sCost100Range1100

View source description

Yuumi channels for {{ ultduration }} seconds, launching {{ numberofwaves }} magical waves affecting both teams. If initially cast while Attached, Yuumi can steer the waves to follow her mouse. Enemies struck are dealt {{ totalmissiledamage }} magic damage and Slowed by {{ baseslow*-100 }}% for {{ ccduration }} seconds, increased by {{ bonusslowperwave*-100 }}% per wave hit. Ally champions are healed for {{ totalhealperwave }} health per wave. Excess healing is converted to a Shield instead. Best Friend Bonus: For her Best Friend, the heal is increased to {{ enhancedhealperwave }} health. Casting You and Me! will locks the waves in the current direction. Yuumi can move and cast Zoomies while channeling. {{ spellmodifierdescriptionappend }}

Updates, sources & excluded items

Displayed data version: 16.19.1 · Patch 26.19

Last verified source check: Sep 28, 2026, 2:55 PM JST
Last successful scheduled run: No verified record
Displayed source capture: Sep 27, 2026, 3:12 PM JST

Latest attempt: No changes · Sep 28, 2026, 2:55 PM JST

Sources are checked every 6 hours, or every 3 hours on Wednesdays and Thursdays (JST). Changed sources or compiler code trigger regeneration and validation before applying. Start times may be delayed.

This page uses a pinned Data Dragon snapshot. It is not a verification of every in-game interaction or hotfix.

Stats and stacks calculate the state you enter. Nine outputs that cannot be derived from the source require in-game values. Special copied or possessed recasts and transfer restrictions are outside full simulation coverage.

Excluded from the catalog: 91

This catalog covers normal Summoner’s Rift. Excluded does not mean removed from the game. The classification and its source are listed below.

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Evidence 1
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Scorchclaw Pup (1107) — Other game mode
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Fortification (1501) — Internal record
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Reinforced Armor (1502) — Internal record
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Warden's Eye (1503) — Internal record
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Reinforced Armor (1505) — Internal record
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Reinforced Armor (1506) — Internal record
Evidence 1
Overcharged (1507) — Internal record
Evidence 1
Anti-tower Socks (1508) — Internal record
Evidence 1
Gusto (1509) — Internal record
Evidence 1
Phreakish Gusto (1510) — Internal record
Evidence 1
Super Mech Armor (1511) — Internal record
Evidence 1
Super Mech Power Field (1512) — Internal record
Evidence 1
Turret Plating (1515) — Internal record
Evidence 1
Structure Bounty (1516) — Internal record
Evidence 1
Structure Bounty (1517) — Internal record
Evidence 1
Structure Bounty (1518) — Internal record
Evidence 1
Structure Bounty (1519) — Internal record
Evidence 1
OvererchargedHA (1520) — Internal record
Evidence 1
Fortification (1521) — Internal record
Evidence 1
Tower Power-Up (1522) — Internal record
Evidence 1
Overcharged (1523) — Internal record
Evidence 1
Overgrowth (1524) — Internal record
Evidence 1
Recall (2001) — Internal record
Evidence 1
Disabled Recall (2007) — Internal record
Evidence 1
Corrupting Potion (2033) — Confirmed removed
Evidence 1 Evidence 2
Guardian's Horn (2051) — Other game mode
Evidence 1
Poro-Snax (2052) — Other game mode
Evidence 1
Cappa Juice (2141) — Other game mode
Evidence 1 Evidence 2
Minion Dematerializer (2403) — Confirmed removed
Evidence 1 Evidence 2
Trailblazer (3002) — Confirmed removed
Evidence 1 Evidence 2
Symbiotic Soles (3010) — Confirmed removed
Evidence 1 Evidence 2
Chemtech Putrifier (3011) — Confirmed removed
Evidence 1 Evidence 2
Synchronized Souls (3013) — Confirmed removed
Evidence 1 Evidence 2
Guardian's Orb (3112) — Other game mode
Evidence 1
Mobility Boots (3117) — Confirmed removed
Evidence 1 Evidence 2
Forever Forward (3176) — Confirmed removed
Evidence 1 Evidence 2
Guardian's Blade (3177) — Other game mode
Evidence 1
Guardian's Hammer (3184) — Other game mode
Evidence 1
Leeching Leer (4635) — Confirmed removed
Evidence 1 Evidence 2
Night Harvester (4636) — Confirmed removed
Evidence 1 Evidence 2
Demonic Embrace (4637) — Confirmed removed
Evidence 1 Evidence 2
Stirring Wardstone (4641) — Confirmed removed
Evidence 1 Evidence 2
Prowler's Claw (6693) — Confirmed removed
Evidence 1 Evidence 2
Opportunity (6701) — Confirmed removed
Evidence 1 Evidence 2
Gangplank Placeholder (7050) — Internal record
Evidence 1
Anathema's Chains (8001) — Confirmed removed
Evidence 1 Evidence 2
Shurelya's Battlesong (322065) — Other game mode · Swiftplay · Related ID: 2065
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Whispering Circlet (322526) — Other game mode · Swiftplay · Related ID: 2526
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Diadem of Songs (322530) — Other game mode · Swiftplay · Related ID: 2530
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Trailblazer (323002) — Other game mode · Swiftplay · Related ID: 3002
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Archangel's Staff (323003) — Other game mode · Swiftplay · Related ID: 3003
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Manamune (323004) — Other game mode · Swiftplay · Related ID: 3004
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Seraph's Embrace (323040) — Other game mode · Swiftplay · Related ID: 3040
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Muramana (323042) — Other game mode · Swiftplay · Related ID: 3042
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Zeke's Convergence (323050) — Other game mode · Swiftplay · Related ID: 3050
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Tear of the Goddess (323070) — Other game mode · Swiftplay · Related ID: 3070
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Thornmail (323075) — Other game mode · Swiftplay · Related ID: 3075
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Redemption (323107) — Other game mode · Swiftplay · Related ID: 3107
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Knight's Vow (323109) — Other game mode · Swiftplay · Related ID: 3109
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Frozen Heart (323110) — Other game mode · Swiftplay · Related ID: 3110
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Winter's Approach (323119) — Other game mode · Swiftplay · Related ID: 3119
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Fimbulwinter (323121) — Other game mode · Swiftplay · Related ID: 3121
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Locket of the Iron Solari (323190) — Other game mode · Swiftplay · Related ID: 3190
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Mikael's Blessing (323222) — Other game mode · Swiftplay · Related ID: 3222
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Ardent Censer (323504) — Other game mode · Swiftplay · Related ID: 3504
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Imperial Mandate (324005) — Other game mode · Swiftplay · Related ID: 4005
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Staff of Flowing Water (326616) — Other game mode · Swiftplay · Related ID: 6616
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Moonstone Renewer (326617) — Other game mode · Swiftplay · Related ID: 6617
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Echoes of Helia (326620) — Other game mode · Swiftplay · Related ID: 6620
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Dawncore (326621) — Other game mode · Swiftplay · Related ID: 6621
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Rod of Ages (326657) — Other game mode · Swiftplay · Related ID: 6657
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Abyssal Mask (328020) — Other game mode · Swiftplay · Related ID: 8020
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Atma's Reckoning (663039) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Demon King's Crown (663056) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Shield of Molten Stone (663058) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Cloak of Starry Night (663059) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Sword of the Divine (663060) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Veigar's Talisman of Ascension (663064) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Hextech Gunblade (663146) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Zephyr (663172) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Gargoyle Stoneplate (663193) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Sword of Blossoming Dawn (664011) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
The Golden Spatula (664403) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Crown of the Shattered Queen (664644) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Gambler's Blade (667101) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Cruelty (667109) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Flesheater (667112) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
The Collector (667666) — Other game mode · Doom Bots
Evidence 1 Evidence 2 Evidence 3 Evidence 4
Penetrating Bullets (771500) — Internal record
Evidence 1

Content language: English

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