Master Yi

Arena changes

• Q: Base damage changed to 20 to 120.
• Q: AD ratio changed to 40% AD.
• Q: Cooldown begins after the blink.
• W: Cooldown changed to 12 seconds.
• E: Base damage changed to 15 to 35.
• E: Bonus AD ratio changed to 20% bonus AD.
• R: Base duration changed to 5 seconds.
• R: Duration refresh on takedown changed to 5 seconds.
• R: Cooldown refund on takedown changed to 50%.²

• Master Yi can repeatedly trigger Ethereal Weapon until opponents break the combo.³
• Fan the Hammer, Mystic Punch and on-hit effects are recommended for Master Yi.⁴
• Heartsteel works well on Master Yi with Vulnerability, Augmented Power, Double Tap, Ethereal Weapon or Dual Wield.⁵
• When Gamba is the first augment, Master Yi is a champion to build with items.⁶
• Master Yi is strong against ADCs.⁷
• Go For The Head works well with on-hit Master Yi.⁸
• Guinsoo's Rageblade works well on Master Yi, even without ability power scaling beyond W. Terminus and Hexplate are also recommended, and Hexplate works well with Tap Dancer.⁹
• With Death's Dance and Plated Steelcaps, Master Yi can kill Kayn before Kayn's damage ramps up.¹⁰
• Master Yi can struggle against heavy burst, including a full-lethality Kayn; the matchup depends heavily on augments and prismatic items.¹¹

• Master Yi scales very well with some augments and items.¹²
• Master Yi's Q always has a cooldown, regardless of augments and items.¹³
• Dashing, Mystic Punch and Mirage Blade can help Master Yi win after a high roll.¹⁴
• Dashing, Q haste and Mystic Punch can carry Master Yi.¹⁵
• Spellcraft prevents Master Yi from attacking while he casts it.¹⁶

• On-hit attacks deal no damage to the Big plant in Ancestral Woods, which can leave Master Yi unable to break it.¹⁷
• Typhoon's range only works near enemies.¹⁸

• Master Yi's R duration and duration refresh changed from 7 to 5 seconds, and its cooldown refund changed from 70% to 50% in patch 26.11.¹⁹

Earlier formats

• Mirage Blade and Fan the Hammer were a build for repeated Q casts.²¹ 8x2 duos
• Master Yi could 1v2 Bel'Veth and Leona, though he was left at about one-fifth health.²²²³ 8x2 duos
• Master Yi's E base true damage changed to 15/20/25/30/35, and W cooldown changed from 10 to 12 seconds in patch 14.17.²⁰ 8x2 duos
• Dual Wield makes each attack fire an additional projectile that counts as its own attack hit; with Dual Wield and Typhoon, each attack can count as four attacks toward Master Yi's passive when he is in melee range of both enemy champions.²⁴ 8x2 duos
• Deft is very good on autoattackers, especially Master Yi.²⁵ 8x2 duos
• Master Yi's Q cooldown could be reduced with Mystic Punch, allowing repeated Q casts with Moonflair.²⁶²⁷²⁸ 8x2 duos
• With Dual Wield, Fan the Hammer and Reaper's Toll, Master Yi had a possible augment combination.²⁹ 8x2 duos
• A Master Yi build used an augment that granted ability power with each attack, followed by Guinsoo's Rageblade, Nashor's Tooth, Hextech Gunblade, Rabadon's Deathcap and Terminus; after killing one or two opponents, W restored his health.³⁰ 8x2 duos
• Jeweled Gauntlet used to apply two critical strikes; it was changed so abilities that could already critically strike selected the higher damage critical strike instead of stacking them.^31323334 8x2 duos
• Jeweled Gauntlet did not make Master Yi's Q crit because it can already critically strike. Master Yi's E could critically strike with the augment.^{35363137383940} 8x2 duos
• Master Yi and Yuumi are a strong combination.⁴¹ 8x2 duos
• Puppeteer could refresh immediately when Master Yi autoattacked.⁴² 8x2 duos
• With Puppeteer, omnivamp and Wuju Style active, Master Yi's attacks could lower Puppeteer's cooldown through self-healing.⁴³ 8x2 duos