Periodically, when Yuumi strikes a champion with an attack or ability, she restores health to herself and the next ally she Attaches to.
While Attached, Yuumi generates a special bond with her allies. The ally with the strongest bond enhances Yuumi's abilities while she is Attached to them.
QProwling Projectile6.5s50/55/60/65/70/75
Yuumi fires a missile, dealing damage and slowing first target hit. It deals bonus damage and an enchanced slow if it takes at least 1.35 seconds to get to its target. While on her Best Friend, the slow is always enhanced and grants bonus On-Hit damage to her ally.
While Attached, the missile can be controlled with your cursor for a brief period.
WYou and Me!0s
Yuumi dashes to a target ally, becoming untargetable from everything except turrets. While on her Best Friend, she gains Heal & Shield Power and grants her Ally On-Hit healing.
E
Patch history
26.12 · Jun 10, 2026
Feline Friendship
Heal AP ratio increased to 30% AP from 25% AP.
Zoomies
Shield AP ratio increased to 40% AP from 30% AP.
26.8 · Apr 15, 2026
You and Me!
Bug Fix: Fixed a bug where she fails to be healed or gain the Homeguard buff upon entering the fountain while attached to an ally champion.
Final Chapter
Base heal per hit increased to 30 to 70 from 30 to 50.
Base stats
Health500 +69/lvl
Mana440 +45/lvl
Attack Damage49 +3.1/lvl
Attack Speed0.625 +1/lvl
Armor25 +4.2/lvl
Magic Resist25 +1.1/lvl
Base Health Regen5 +0.55/lvl
Base Mana Regen10 +0.4/lvl
Move Speed330
Range425
Ranged · Resource: Mana
Zoomies
10s
80/90/100/110/120
Shields Yuumi and boosts Move Speed and Attack Speed. If she's attached, she passes it to her ally instead.
RFinal Chapter120/110/100s100
Yuumi channels five waves that damage enemies and heal allies. Yuumi can move, attach, and cast Zoomies! while channeling. While on her Best Friend, this spell also follows her mouse.
Heal AP ratio increased to 12% AP from 10% AP.
Feline Friendship bonus heal increased to 30% to 60% from 30% at all levels.
Bug Fix: No longer heals the anchor for each time another ally is healed.
Bug Fix: Overhealing shield now takes into account Heal/Shield power as well as Grievous Wounds.
25.16 · Aug 13, 2025
Prowling Projectile
Empowered base damage reduced to 80 to 355 from 80 to 380.
You and Me!
Heal and shield power reduced to 4 to 8% from 5 to 15%.
Feline Friendship on-hit base healing reduced to 3 to 7 from 3 to 11.
Feline Friendship on-hit healing AP ratio reduced to 3% of Yuumi's AP from 4%.
25.14 · Jul 16, 2025
Final Chapter
Heal AP ratio per hit reduced to 10% AP from 15% AP.
Total heal AP ratio reduced to 50% AP from 75% AP.
Best Friend heal AP ratio reduced to 13% AP from 19.5% AP.
Total Best Friend heal AP ratio reduced to 65% AP from 97.5% AP.
25.10 · May 14, 2025
Final Chapter
Base heal per hit reduced to 30 to 50 from 35 to 65.
Feline Friendship base heal per hit reduced to 39 to 65 from 45.5 to 84.5.
35 older patches
25.8
Feline Friendship
Base heal reduced to 20 to 110 from 25 to 110.
Zoomies
Base shield reduced to 65 to 165 from 80 to 180.
14.24
Prowling Projectile
Mana cost reduced to 50 to 75 from 50 to 100.
Base damage increased to 60 to 235 from 60 to 210.
Empowered base damage increased to 80 to 380 from 80 to 355.
14.23
You and Me!
Bug Fix: Attempting to attach on an allied Neeko disguised as Jack in the Box no longer causes both the ability and Yuumi's movement to become invalid until Yuumi has died.
14.20
You and Me!
Recast targeting forgiveness is now handled at the engine-level rather than the script-level.
New Effect: Initial cast now has a forgiveness radius of 175 units.
14.14
You and Me!
Bug Fix: Can no longer be used on allies without having vision of them.
14.12
Zoomies
Cooldown reduced to 10 seconds at all ranks from 12 to 10.
Final Chapter
Base heal per hit increased to 35 to 65 from 25 to 55.
Best Friend base heal per hit increased to 45.5 to 84.5 from 32.5 to 71.5.
Bug Fix: VFX now correctly adjusts to the size of the W.
Final Chapter
Bug Fix: VFX now correctly adjusts to the size of the W.
13.12
You and Me!
Heal and shield power changed to 5 to 15% from 10% to 20%.
Zoomies
Base bonus attack speed reduced to 25 to 35% from 35% at all ranks.
Base shield reduced to 80 to 180 from 90 to 210.
Final Chapter
Base heal per hit reduced to 25 to 55 from 35 to 65.
13.8
Feline Friendship
Bug Fix: Now properly grants stacks from champion kills to the ally that is You and Me! to.
Prowling Projectile
Bug Fix: Expiration SFX is no longer audible from the fog of war.
13.7
Feline Friendship
Bug Fix: Passive buff SFX now properly plays for enemies that are attacked while not in vision.
Bug Fix: Friendship stacks granted from kills for an allied champion are no longer doubled if Yuumi uses You and Me! to attach to that ally, then detach, and re-attach to them before they kill the enemy.
Final Chapter
Bug Fix: Now properly triggers Summon Aery when it affects an allied champion.
Bug Fix: Heal now properly triggers Summon Aery when it is granted to an allied champion using You and Me!.
Prowling Projectile
Cooldown changed to 6.5 seconds at all ranks from 7.5 to 6.25.
13.5
Prowling Projectile
Empowered base damage reduced to 80 to 355 from 80 to 380.
Empowered slow reduced to 50 to 65% from 55 to 85%.
You and Me!
Bug Fix: Fixed a bug where both her and her Anchor would both stack Tear of the Goddess simultaneously if they both owned it.
Stats
Health growth reduced to 69 from 84.
Base mana increased to 440 from 400.
Feline Friendship - New Innate
Innate: Periodically, Yuumi's next basic attack (which has 50
13.3
You and Me!
Bug Fix: No longer causes jungle monsters to not respond to taking damage from the caster if they aggroed the camp and used Change of Plan on an allied champion.
13.1
Prowling Projectile
Base damage reduced to 50 to 200 from 50 to 250.
Empowered base damage reduced to 60 to 260 from 60 to 310.
12.23
Bop 'n' Block
Cooldown increased to 18 to 6 from 14 to 6.
Final Chapter
Root duration reduced to 1.25 seconds from 1.75.
12.21
You and Me!
Bug Fix: The adaptive force buff no longer disappear on allies affected by specific debuffs.
12.16
Prowling Projectile
Base damage increased to 50 to 250 from 50 to 200.
Empowered base damage increased to 60 to 310 from 60 to 260.
Empowered health ratio increased to 3 to 9% of target's current health from 2 to 8%.
Final Chapter
Cooldown reduced to 110 to 90 seconds from 130 to 90.
Zoomies
Cooldown increased to 12 to 10 seconds from 12 to 8.
Bonus movement speed AP ratio reduced to
12.15
General
Bug Fix: Fixed a bug where she would be unable to use swapped summoner spells from Unsealed Spellbook after using Teleport.
12.14
Zoomies
Heal AP ratio reduced to 30% AP from 35% AP.
12.12
Bop 'n' Block
Removed: No longer grants 50 bonus attack range.
Bop 'n' Block
Base shield increased to 60+10*(x-1) for 3; then +15*x for 4; then +20*x for 7; then + 25*x from 56+9*(x-1) for 3; then +13*x for 4; then +18*x for 7; then + 27*x.
Zoomies
Base heal reduced to 70 to 150 from 70 to 190.
Base bonus movement speed increased to 20% from 15%.
12.10
Zoomies
Mana cost mana ratio reduced to 12% maximum mana from 15%.
Base heal increased to 70 to 190 from 65 to 165.
Heal AP ratio increased to 35% AP from 25% AP.
Stats
Base health increased to 550 from 480.
Health growth increased to 84 from 70.
Armor growth increased to 4.2 from 3.
Magic resistance growth increased to 1.1 from 0.3.
Bop 'n' Block
12.9
General
New Effect: Skins except Battle Principal Yuumi now play their custom recalls if her allies are recalling while she is attached.
11.22
You and Me!
Bug Fix: No longer causes her to vanish if her Anchor is vanished, as she became permanently vanished if she detached from them while they were vanished.
Zoomies
Bonus movement speed AP ratio reduced to 6% per 100 AP from 10%.
Base heal reduced to 70 to 190 from 70 to 210.
Heal AP ratio reduced to 35% AP from 40% AP.
11.18
Bop 'n' Block
Cooldown reduced to 14 to 6 seconds from 18 to 6.
11.10
Prowling Projectile
Base damage increased to 50 to 200 from 40 to 190.
Empowered base damage increased to 60 to 260 from 45 to 245.
You and Me!
Bug Fix: Ally's level icon now properly reverts back to normal when she detaches from said ally.
11.8
You and Me!
Bug Fix: Can no longer activate Moonstone Renewer when casting the second cast repeatedly on an out-of-range ally that is in combat.
10.25
You and Me!
Bug Fix: Now properly goes on cooldown when she is affected by charms or knock-ups.
10.22
You and Me!
Bug Fix: Fixed a bug where the spell would not go on cooldown if Yuumi was crowd controlled.
Mana restored reduced to 25 to 100 from 50 to 160.
New Effect: Now restores an additional 8% maximum mana.
Cooldown reduced to 18 to 6 seconds from 20 to 8.
10.14
You and Me!
Bug Fix: Attach icon no longer disappears on the minimap after the champion she is attached to recalls.
Bug Fix: When attacking Elder Dragon and then using You and Me! on a camouflaged ally champion, Elder Dragon no longer loses its leash range.
10.13
Zoomies
Mana cost reduced to 40 to 60 from 100 to 160.
New Effect: Now costs an additional 15% maximum mana.
10.3
Prowling Projectile
Base damage increased to 40 to 190 from 40 to 165.
Empowered base damage increased to 45 to 245 from 45 to 220.
Zoomies
Base heal increased to 70 to 210 from 70 to 190.
Prowling Projectile
Empowered base damage reduced to 45 to 220 from 50 to 275.
New Effect: Now deals 2 to 8% of the target's current health if the missile is empowered.
Mana cost changed to 90 at all ranks from 85 to 110
Mana cost increased to 50 to 100 from 50 to 75.
Missile speed reduced to 850 from 1000.
Empowered missile speed reduced to 1650 from 1900.
Cast range reduced to 850 units from 1150.
Bug Fix: Slow debuff while not attached now properly decays.
Zoomies
Bug Fix:Yuubee Yuumi no longer plays the SFX at a loud volume.
Final Chapter
Overheal shield duration reduced to 1.5 seconds from 3.
Removed: No longer grants 20 to 60(+ 10% AP) bonus resistances to her Best Friend.
Bug Fix: Now properly triggers Feline Friendship heal if it hits an allied champion.
Bug Fix: Now properly tracks the player's mouse cursor when the waves are being steered.
Bug Fix:EDG Yuumi no longer plays the SFX at a loud volume.
Bug Fix:EDG Yuumi now properly displays the trophy VFX for the final wave.
bonus
range), or ability hit against enemy champions will
heal
her for
25 to 110
(+ 15% AP)
. If she is
You and Me!
to an ally within 4 seconds, they are healed for the same amount.
Innate: While You and Me! to an ally, Yuumi grants them 2 permanent Friendship stacks for killing enemy champions and minions. The ally with the highest Friendship stacks becomes Yuumi'sBest Friend, which empowers her abilities with additional effects while she is You and Me! to them.
Static Cooldown:20 to 10 seconds.
Prowling Projectile
Mana cost reduced to 50 to 75 from 90 at all ranks.
Cooldown changed to 7.5 to 6.25 seconds from 13.5 to 6.
Missile width reduced to 60 units from 65.
New Effect: Now reveals champions hit for 1 second.
Base damage increased to 60 to 210 from 50 to 200.
AP ratio reduced to 20% AP from 30% AP.
Empowered base damage increased to 80 to 380 from 60 to 260.
Empowered AP ratio reduced to 35% AP from 40% AP.
Channel duration reduced to 1.35 seconds from 2.
Removed: No longer deals 3 to 9% of the target's current health if empowered, capped at 50 to 300 against non-champions.
New Effect: Empowered slow now decays over the duration.
New Effect: Slow is now increased to 55 to 80% for 2 seconds if empowered.
New Effect: While attached and after 1.35 seconds of flight, the missile becomes empowered and accelerates in its current direction.
Best Friend Bonus: Slow will always be empowered against champions and hitting a champion will grant her Best Friend10 to 20(+ 10% AP)bonus magic damage on-hit for 5 seconds, increased by 0% to 75%.
You and Me!
Removed: No longer grants herself or her ally 12 to 20(+ 6 to 10%) adaptive force.
Removed: No longer counts as a buff for Summon Aery.
Best Friend Bonus: She gains 10% to 20% heal and shield power and her Best Friend gains 3 to 11(+ 4% AP) on-hit healing, affected by her heal and shield power.
Zoomies
Removed: No longer heals for 70 to 150(+ 30% AP).
New Effect: Now shields for 90 to 210(+ 30% AP) for 3 seconds.
Mana cost changed to 80 to 120 from 40 to 60(+ 12% maximum mana).
Bonus attack speed changed to 35% at all ranks from 25 to 45%.
New Effect: Bonus attack speed now scales with 8% per 100 AP.
New Effect: Bonus movement speed now lasts as long as the shield persists, instead of 3 seconds.
New Effect: Now restores 20 to 36 mana to her Anchor, increased by 0% to 100%.
Updated icon.
Final Chapter
Number of waves reduced to 5 from 7.
Duration unchanged.
Wave interval time increased to 0.7 seconds from 0.5.
New Effect: Can now steer the direction of the waves with her mouse if initially cast while attached. This bonus is lost if she detaches.
Cooldown increased to 120 to 100 seconds from 110 to 90.
Base damage per wave increased to 75 to 125 from 60 to 100.
New Effect: Now heals her Anchor and allies hit for 35 to 65(+ 15% AP) per wave. Excess healing is converted into a shield that persists until 3 seconds after the ability ends.
Removed: No longer roots champions hit by 3 waves for 1.25 seconds.
New Effect: Now slows enemies hit by 10% for 1.25 seconds, increased by 10% per subsequent wave.
Best Friend Bonus: Her Best Friend gains 30% increased healing from waves and 20 to 60(+ 10% AP)bonus armor and bonus magic resistance for the duration of the ability.
2% per 100 AP
from
6% per 100 AP
.
Base shield reduced to
56+9*(x-1) for 3; then +13*x for 4; then +18*x for 7; then + 27*x
from
60+10*(x-1) for 3; then +15*x for 4; then +20*x for 7; then + 30*x
.
AP ratio reduced to 25% AP from 30% AP.
Zoomies
Base heal reduced to 65 to 165 from 70 to 190.
Heal AP ratio reduced to 25% AP from 35% AP.
.
You and Me!
Removed:Silence no longer counts as an immobilizing crowd control.
Bug Fix: No longer gets stuck in her ally Realm of Death when she casts You and Me! towards him as he is reviving via Chronoshift.
