Keeper of the ancient art of Wuju, Master Yi is a mystical warrior from the isle of Ionia. He descended from one of the few tribes dedicated to the preservation of Wuju, a martial art founded with the principles of absolute spiritual awareness of one's self and one's enemy. When the armies of Noxus invaded Ionia, Master Yi joined in the Ionian defense to fight the craven enemy, bringing his village honor through his unparalleled mastery of the blade. The ensuing battles ravaged the land, but no conflict inflicted as much horror as the day the armies of Noxus closed in on Yi's village.

Credits to jhoijhoi for the template, which you can find here.

Pros +Early game AP domination +Late game AD domination +Meditate allows for a quick heal to get Master Yi back into the fight +Master Yi's passive Double Strike usually guarantees Master Yi the kill on an enemy minion or enemy turret +Highlander is great for chasing down enemies and picking up the kill +Good at pushing his lane +Excellent at harassing other enemy champions +Alpha Strike is excellent for striking multiple enemies in quick succession

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Cons -Master Yi cannot take too much damage in team fights -It is hard for Master Yi to pick up a gank -Master Yi is not a Team Champion -While using his ultimate Highlander it is very easy for Master Yi to overextend and turret dive if the player is not careful

It is important to always take Summoner's Wrath , due to its ability to enhance your summoner spells. Alacrity is important for Master Yi, because when used with the item Phantom Dancer Master Yi is one of the fastest attackers in the game. Vampirism helps Master Yi in his life draining abilities with the help of the item Wriggle's Lantern . The Expanded Mind is important to Yi to give him more mana per level, allowing him to stay in his lane longer. Finally, Swiftness increases Master Yi's movement speed and with the use of the Berserker's Greaves this powerful combination makes Master Yi a force to be reckoned with on the battlefield for his ability to get in and out of fights very quickly.

• greater quintessence of desolation: This quintessence gives Master Yi even more armor penetration for dealing with champions with the heaviest armor like Nunu
  
• greater mark of desolation: This mark gives Master Yi more armor penetration for those pesky tanks like Cho'Gath.
  
• Greater Glyph of Magic Resist: This glyph gives Master Yi a better magic resist, allowing him to resist mages such as Annie and Lux.
  
• Greater Seal of Critical Damage: This seal gives Master Yi a better chance at a critical strike, making his Wuju Style ability even deadlier.

1st Option Ghost:Ignores unit collision and moves 27% faster for 10 seconds. 4th Option Heal:Restores 140 + (lvl x 25) Health to your Champion and 50% of that to nearby allies. All targets healed will have a 50% reduction in heal amount from other summoner heal spells for 20 secs.

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2nd Option Exhaust:Slows movement speed by 40% and reduces auto/basic attack damage by 70% and ability/item damage by 35% for 2.5 seconds. 5th Option Surge:Increases ability power by 10-78 (depending on level) and attack speed by 35% for 12 seconds.

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3rd Option Clarity:Restores 160 + (lvl x 30) Mana to your champion and 50% of that to nearby allies. 6th Option Flash:Teleports to target nearby location under your mouse cursor.

• Double Strike(P):Master Yi strikes twice every 7th basic attack.
  
• Alpha Strike (Q):Master Yi leaps across the battlefield striking up to 4 enemies, dealing magic damage to each enemy with a chance to deal 400 bonus magic damage to minions.
  
• Meditate (W):Master Yi channels, gaining massive health regeneration, armor, and magic resistance for 5 seconds. Master Yi is also healed at the beginning and end of the channel.
  
• Wuju Style (E):Increases attack damage for as long as Wuju Style is not on cooldown. Master Yi can activate this ability to receive bonus attack damage equal to double the passive bonus for 10 seconds.
• Highlander (R):Increases Master Yi's movement speed by 40% and attack speed for a few seconds, as well as making him immune to any slow effects for the duration. Additionally, killing a champion during the duration will refresh all of Master Yi's ability cooldowns, while assists will refresh them by half the base amount.

• Doran's Blade:Gives bonus health and attack damage at the start of the game. Useful when playing as Yi, as Master Yi is based around attack damage and that extra bit of health can never hurt.
  
• Berserker's Greaves:These are the boots you are going to be rushing for as Master Yi as it gives him a faster attack speed and faster movement.
  
  
• Vampiric Scepter:This item builds into the Wriggle's Lantern giving Master Yi life steal capabilities. Builds into Wriggle's Lantern.
  
• Wriggle's Lantern:The only reason you want this item is for its life steal bonus and attack damage.
  
• The Brutalizer:This item is great for attack damage and builds into the Ghostblade.
  
• Negatron Cloak:Gives Master Yi +48 Magic Resist for those pesky mages in the lane. Builds into the Quicksilver Sash.
  
• Quicksilver Sash:With the added debuff of reducing cooldowns every 90 seconds, this item allows Yi to fire up his abilities and spells in a shorter period of time.
  
• Avarice Blade:This item is mainly for the extra gold, but it also adds to Master Yi's critical strike chance. Builds into Youmuu's Ghostblade.
  
• Youmuu's Ghostblade:Built from the Brutalizer the Ghostblade is an overall great item for Master Yi as it boosts attack speed, attack damage, critical strike, movement speed, and armor penetration.
  
• Zeal:Increases attack speed and multiplies movement speed eight times. Builds into Phantom Dancer.
  
• Phantom Dancer:The main reason for this item on Master Yi is for its substantial attack speed bonus and also its movement speed multiplier.
  
• B. F. Sword:The B. F. Sword increases attack damage by 45. Builds into Infinity Edge to complete the build order and replaces Doran's Blade.
  
• Infinity Edge:Great late game item for Master Yi as it boosts Attack Damage by 80 and dramatically increases his critical strike chances to get that killing blow on the enemy more often.
  
  SPECIAL THANKS TO: Zerule for helping me with the item selection for the guide. Could not have done this guide without his help.