Doubt is the Greatest Enemy
Dark Harvest
Damaging a Champion below 50% health deals
adaptive damage and harvests their soul, permanently increasing Dark Harvest's damage by 11.
Dark Harvest damage: 30 (+11 damage per soul) (+0.1 bonus AD) (+0.05 AP)
Cooldown: 35s (resets to 1.0s on takedown)Why?
Master Yi's ability to massively clear the jungle and power farm to build Dark Harvest stacks makes you a late game teamfight monster if you're able to get the reset.
Sudden Impact
Damaging basic attacks and abilities deal a bonus
20 - 80 True Damage based on level to enemy champions after using a dash, leap, blink, teleport, or when leaving stealth for 4s.
Cooldown: 10sWhy?
Master Yi is able to easily proc the bonus Lethality from [Q] granting you even more kill pressure.
Grisly Mementos
Collect 1 memento on champion
takedowns , up to 18 total.
Gain 6 Trinket Haste for each collected. In game modes where vision Trinkets do not exist, instead gain 3 Summoner Spell Haste.Why?
Grisly Mementos's snowballing damage potential means that if you're able to pick up a few early kills, you should be able to run away with the game.
Relentless Hunter
Gain
8 Move Speed out of combat per Bounty Hunter stack. Bounty Hunter stacks are earned the first time you get a takedown on each enemy champion.Why?
The bonus Movement Speed from Relentless Hunter is fantastic for empowering your power farming playstyle with this setup, allowing you to clear quickly and get back out on the field after a recall.
Triumph
Takedowns restore 5% of your missing health, 2.5% of your max health, and grant an additional 20 gold.
'The most dangerous game brings the greatest glory.'
—Noxian ReckonerWhy?
Triumph's massive mid-fight heal after a kill means you'll be resetting and proccing your Dark Harvest stacks for a crazy amount of damage output.
Legend: Alacrity
Gain 3% attack speed plus an additional 1.5% for every Legend stack (
max 10 stacks ).
Earn progress toward Legend stacks for every champion takedown, epic monster takedown, large monster kill, and minion kill.Why?
Master Yi is a natural auto-attacker and the extra bit of Attack Speed from Alacrity means a faster clear for Dark Harvest stacks and massive teamfight damage.
Wuju Bladesman
Conqueror
Basic attacks or spells that deal damage to an enemy champion grant 2 stacks of Conqueror for 5s, gaining 1.8-4
Adaptive Force per stack. Stacks up to 12 times. Ranged champions gain only 1 stack per basic attack.
When fully stacked, heal for 8% of the damage you deal to champions (5% for ranged champions).Why?
Conqueror on Master Yi empowers your ability to scale into mid-game teamfights and completely take over.
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Triumph
Takedowns restore 5% of your missing health, 2.5% of your max health, and grant an additional 20 gold.
'The most dangerous game brings the greatest glory.'
—Noxian ReckonerWhy?
The heal from Triumph after a kill lets you reset and continue hunting down your next target.
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Legend: Alacrity
Gain 3% attack speed plus an additional 1.5% for every Legend stack (
max 10 stacks ).
Earn progress toward Legend stacks for every champion takedown, epic monster takedown, large monster kill, and minion kill.Why?
Yi's favorite stat is Attack Speed so this is rune choice is a no-brainer.
Coup de Grace
Deal 8% more damage to champions who have less than 40% health.
Why?
Because Yi is an assassin, he wants to end his target's life as quickly as possible and Coup De Grace is the go-to for that.
Sudden Impact
Damaging basic attacks and abilities deal a bonus
20 - 80 True Damage based on level to enemy champions after using a dash, leap, blink, teleport, or when leaving stealth for 4s.
Cooldown: 10sWhy?
Yi's **[Q]** grants him free Lethality upon arrival to provide more damage and end your target's life.
Grisly Mementos
Collect 1 memento on champion
takedowns , up to 18 total.
Gain 6 Trinket Haste for each collected. In game modes where vision Trinkets do not exist, instead gain 3 Summoner Spell Haste.Why?
Grisly Mementos allows you to snowball early kills into your massive late-game scaling to take over and solo carry.