Introduction

Master Yi is a great on many departments. This build focusses on AD and AS. Late game with full build the stats are about 320 AD, 2+ AS, 451 movement speed and 25% lifesteal. So such type of Yi is very usefull when it comes to 1v1, pushing massive waves of minions and destroying towers. You can see all his pros and cons bellow.
He is a a character how have so much speed use it to kill more oponents

Master Yi - The basic

Release Date: October 27, 2009
Attributes: Carry, Melee
Cost: 450 IP Points or 260 RP Points

Health Average
Attack Strong
Spells Weak
Difficulty Easy


Health 444 (+ 86 per Level)
Health Regen 6.75 (+ 0.65 per Level)
Mana 199 (+ 36 per Level)
Mana Regen 6.5 (+ 0.5 per Level)
Attack Damage 55.12 (+ 3.1 per Level)
Armor 16.3 (+ 3.7 per Level))
Magic Resistance 30 (+ 1.25 per Level)
Attack Speed 0.679 (+ 2.8% per Level)
Range 125
Movement speed 330

Pros
Great pusher
Pretty easy to learn overall
Awesome attack speed
Great escape/chase mechanism



Cons
Vurneable to disables like blind, stun...

Early game

Try to lane with champions that have root, stun or any kind of skill that can prevent enemies from fleeing the battlefield(slow can work too, I guess). After you have done that, peacefully farm and annoy your enemies untill you hit level 6 and get Highlander. Then you and your partner should annoy your enemies, so they hit about 1/2 life. Then your partner slows, stuns, roots(whatever he has) and you press E and R. Acording to the build you should get 40% AS boost and 50 extra damage. No way they can escape
Mid Game

If you have succesfully killed your enemies on the lane, you can go freely kill some jungle monsters, maybe take blue buff or you can go gank. Pretty much your decision. If you are doing good, you should have Phage by now which should make ganking much easier. If you want to gank and you are not doing so great, you can grab Frozen Mallet sooner.

Late Game

Now you should have some pretty good items which will help you in all departments. If you are doing good just peacfully relax and push.

Don't take Ghost as your summoner spell(duh).

Don't use your ulti to get to a fight, use it in a fight.

Take the lane nearest to the blue buff. Using Alpha Strike with your ultimate reseting cooldown to 0 every time you kill...You will have a serius mana lack. So go to near blue buff shop and take it.

Use meditate because its very usefull even with DPS Master Yi. When you are level 18 and have all skills maxed, medidate gives you 300 magic resistance for few seconds. All you can do is say i'm not ready to die to enemy Karthus when he wants to kill you with his ulti.

Skills

I first go with Alpha Strike for easier farming. Then I max out Wuju Style ASAP, while choosing Highlander when possible and Alpha Strike when needed. I max meditate at the end.

Double Strike Great passive for this type of champion. 2x damage with 1k crits. Do I need to say more?

Alpha Strike Great tool for farming and even better for catching your enemies. When maxed it deals 300 damage, which is respectable, since you get no bonus from ability power.

Meditate Usefull when maxed out to counter ultimates from champs like Karthus, since you get 300 Magic Resistance and Armor and you get healed for 700 Health over 5 seconds. But it's not worthy leveling up in the begining, because this is not AP Master Yi Build.

Wuju Style When maxed out it's passive is 35 more damage. When u activate it u get 70 damage. Let ur brain do the math :)

Highlander Awesome ultimate. Good escape mechanism, good chasing mechanism,...Let me just count the awesome things of this ulti:
When maxed, 80% Attack speed boost for 12 seconds
Immune to slow effects while active(Ashe's frost arrow, exhaust,...)
If you kill a champion, while Highlander is active, your cooldowns reset, if you get an assist, your cooldown is cut in half.