Master Yi vs Yuumi in League of Legends

HEAD-TO-HEAD

Assassin

Master Yi

the Wuju Bladesman

Mage

Yuumi

the Magical Cat

Master Yi

Major net nerf (score -6, 1 buffs / 7 nerfs). Notable: Q bonus critical strike damage 75→100; Q monster damage 95→80; base base health 655→640. Touched across patches 25-15, 25-17, 25-24, 25-6.

Yuumi

Minor net nerf (score -4, 0 buffs / 4 nerfs). Notable: E shield 80→65; passive heal 25→20; R base heal per hit 35→30. Touched across patches 25-10, 25-14, 25-16, 25-8, 26-8.

Base stat comparison

STAT	Master Yi	Yuumi
Health HP	640 +105/lvl	500 +69/lvl
Attack Damage AD	65 +0/lvl	49 +0/lvl
Armor	33 +4.50/lvl	25 +4.20/lvl
Magic Resist MR	32 +2.05/lvl	25 +1.10/lvl
Attack Speed	0.679 +2.50/lvl	0.625 +1/lvl
Move Speed MS	355	330
Attack Range	175	425
Resource	251 +42/lvl	440 +45/lvl

Patch history

Master Yi4 patches

Show changelog →

2025-03-18Patch 25.6

Armor Growth4.7 → 4.2
Q · Bonus Critical Strike Damage75% → 100%

2025-07-29Patch 25.15

Q · Damage30 / 60 / 90 / 120 / 150 (+ 50% total AD) → 20 / 40 / 60 / 80 / 100 (+ 70% total AD)
Q · Monster Damage95 / 150 / 205 / 260 / 315 (+ 50% total AD) → 80 / 125 / 170 / 215 / 260 (+ 70% total AD)

2025-08-26Patch 25.17

Base Health669 → 655
Q · On-hit damage modifier75% → 65%

2025-12-02Patch 25.24

Base Health655 → 640
Attack Damage Growth2.8 → 2.5

Yuumi5 patches

Show changelog →

2025-04-15Patch 25.8

passive · Heal25-110 (based on level) (+ 25% AP) → 20-110 (based on level) (+ 25% AP)
E · Shield80 / 105 / 130 / 155 / 180 (+ 30% AP) → 65 / 90 / 115 / 140 / 165 (+ 30% AP)

2025-05-13Patch 25.10

R · Base Heal per Hit35 / 50 / 65 → 30 / 40 / 50

2025-07-15Patch 25.14

R · Heal per Hit30 / 40 / 50 (+ 15% AP) → 30 / 40 / 50 (+ 10% AP)

2025-08-12Patch 25.16

Q · Empowered Base Damage80 / 140 / 200 / 260 / 320 / 380 → 80 / 135 / 190 / 245 / 300 / 355
W · Heal and Shield Power5 / 7.5 / 10 / 12.5 / 15% → 4 / 5 /6 / 7 / 8%
W · Heal On-Hit3 / 5 / 7 / 9 / 11 (+ 4% AP) → 3 / 4 / 5 / 6 / 7 (+ 3% AP)

2026-04-14Patch 26.8

R · Heal Per Wave30 / 40 / 50 (+10% AP) → 30 / 50 / 70 (+12% AP)
R · Best Friend Enhanced Heal30% More Healing → 30 - 60% More Healing (Levels 6 - 12)

Sources

Numbers paraphrased from official Riot patch notes. See methodology for how the cumulative verdict is computed.

STAT

Master Yi

Yuumi

Health

640

+105/lvl

500

+69/lvl

Attack Damage

+0/lvl

Armor

+4.50/lvl

+4.20/lvl

Magic Resist

+2.05/lvl

+1.10/lvl

Attack Speed

0.679

+2.50/lvl

0.625

+1/lvl

Move Speed

355

330

Attack Range

175

425

Resource

251

+42/lvl

440

+45/lvl

Patch history

Master Yi4 patches

Show changelog →

2025-03-18Patch 25.6

Armor Growth4.7 → 4.2
Q · Bonus Critical Strike Damage75% → 100%

2025-07-29Patch 25.15

Q · Damage30 / 60 / 90 / 120 / 150 (+ 50% total AD) → 20 / 40 / 60 / 80 / 100 (+ 70% total AD)
Q · Monster Damage95 / 150 / 205 / 260 / 315 (+ 50% total AD) → 80 / 125 / 170 / 215 / 260 (+ 70% total AD)

2025-08-26Patch 25.17

Base Health669 → 655
Q · On-hit damage modifier75% → 65%

2025-12-02Patch 25.24

Base Health655 → 640
Attack Damage Growth2.8 → 2.5

Yuumi5 patches

Show changelog →

2025-04-15Patch 25.8

passive · Heal25-110 (based on level) (+ 25% AP) → 20-110 (based on level) (+ 25% AP)
E · Shield80 / 105 / 130 / 155 / 180 (+ 30% AP) → 65 / 90 / 115 / 140 / 165 (+ 30% AP)

2025-05-13Patch 25.10

R · Base Heal per Hit35 / 50 / 65 → 30 / 40 / 50

2025-07-15Patch 25.14

R · Heal per Hit30 / 40 / 50 (+ 15% AP) → 30 / 40 / 50 (+ 10% AP)

2025-08-12Patch 25.16

Q · Empowered Base Damage80 / 140 / 200 / 260 / 320 / 380 → 80 / 135 / 190 / 245 / 300 / 355
W · Heal and Shield Power5 / 7.5 / 10 / 12.5 / 15% → 4 / 5 /6 / 7 / 8%
W · Heal On-Hit3 / 5 / 7 / 9 / 11 (+ 4% AP) → 3 / 4 / 5 / 6 / 7 (+ 3% AP)

2026-04-14Patch 26.8

R · Heal Per Wave30 / 40 / 50 (+10% AP) → 30 / 50 / 70 (+12% AP)
R · Best Friend Enhanced Heal30% More Healing → 30 - 60% More Healing (Levels 6 - 12)