for info of the build and some help videos you can find on the end of the page :)

crit damage over crit chance since it's more endgame'ish. Your crit due to PD + IE will be high enaugh to maintain this.Apart of great dps, huge criticals, great atack speed he has a superb chasing mechanism as well as it can be used as superb escape mechanism. I dont feel any urge to get % crit for early game since i depend on double strike and AS from 2 early game items.
:):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):)

http://www.youtube.com/watch?v=1fWiD-a9-eI nice video isn't it?
see mi things(not mi the video owner)

My Items:
1: Doran's Shield
2. Brutalizer
3. Mercury Treads
4. Avarice Blade
5. Youmuu's Ghostblade
6. Stark's Fervor
7. Infinity Edge
8. Bloodthirster


My Runes:
Reds: Armor Penetration
Yellows: Dodge %
Blues: Cooldown @ 18
Quintessences: Flat Health

Keeper of the ancient art of Wuju, Master Yi is a mystical warrior from the isle of Ionia. His village was steeped in Wuju, and his kinfolk were some of the few to carry the tradition into the modern day. That is, until the armies of Noxus came to Ionia, ravaging the land. Master Yi went to fight the craven enemy, bringing his village honor through his unparalleled mastery of the blade. However, in his absence, the armies of Noxus closed in and tested the latest invention of the chemist now known as Singed. What was done to his village is something of which Master Yi will not speak. However, he has brought his mastery of the blade to the League of Legends in order to avenge his kinfolk and end the predations of the Noxus once and for all.

Master Yi is a fast char that can diliver great amount of damage in short period of time. He is one of the greatest (if not the best) carry/pusher/farmer ingame.
Apart of great dps, huge criticals, great atack speed he has a superb chasing mechanism as well as it can be used as superb escape mechanism.

+Great damage
+Great atack speed
+Superb chaser
+Great escape
+Easy to play

Master Yi's Double Strike is similar to Caitlyn's Headshot. It is very useful when farming enemy minions Wuju Style combined with Alpha Strike are very strong for last hitting minions.Great combination.Triggering Wuju Style and Highlander when combined with various melee increases makes Master Yi a high damage dealer, if for short periods. It's especially effective in destroying towers.
Although you cannot be slowed during Highlander, a good disable or blind will stop most of your damage, so be careful of enemies with disables.Its my best strategy for Master Yi.

More or less your dps should look like this:
Alpha Strike on a hero -> Enable Wuju Style -> slap slap slap dead - profit!
or
Alpha Strike on a hero -> Enable Wuju Style -> slap slap o_O You want to flee? Go ahead -> Enable Highlander -> slap slap slap dead :) cooldows refreshed hmmm witch one will be next...
when you are sure of scoring a kill but you need to do it fast:
Alpha Strike on a hero -> Enable Wuju Style -> Enable Highlander -> slap slap slap dead :) cooldows refreshed hmmm witch one will be next... (watch your mana pool if you dont have blue buff)
In worst scenarios:
Alpha Strike on a hero -> Enable Wuju Style -> slap slap, whops he is beating my *** off... -> Enable Highlander and GTFO of there :)

(Active): 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.
Range: 600
Cost: 80 / 90 / 100 / 110 / 120 mana
Cooldown: 18 / 16 / 14 / 12 / 10 seconds
Magic Damage: 100 / 150 / 200 / 250 / 300 (+1 per ability power)
Bonus Damage Chance: 20 / 30 / 40 / 50 / 60 %

(Active): Master Yi channels, restoring health over 5 seconds. While channeling, Master Yi gains armor and magic resistance.
Cooldown: 35 seconds
Cost: 70 / 85 / 100 / 115 / 130 mana
Heal: 140 / 280 / 420 / 560 / 700 (+1.65 per ability power)
Armor & Magic Resistance: 100 / 150 / 200 / 250 / 300

(Passive): Increases attack damage.
(Active): Master Yi can activate this ability to double its effectiveness for 10 seconds, but this removes the passive bonus until Wuju Style becomes available again.
Cost: 40 mana
Cooldown: 25 seconds
Attack Damage: 15 / 20 / 25 / 30 / 35

(Active): 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. Additionally, killing a champion refreshes all of Master Yi's Abilities. Assist refreshes all abilities by half.
Cost: 120 mana
Cooldown: 75 seconds
Attack Speed: 40 / 60 / 80 %
Duration: 6 / 9 / 12 seconds

Master Yi is good in team with Sion ,Cho Gat,and healers like Soraka.Master Yi is the best kill stealer!!!

Pros
+Great damage

+Great atack speed

+Superb chaser

+Great escape mechanism

+Superb pusher/carry/farmer

+Easy to play

+Good harraser



Cons
-Squishy early game

-Vurneable to disables

-Easy to harras (Melee)

-After using Ulti on a gank that is not working out, he has no way of fleeing from battle.

http://www.youtube.com/watch?v=F6d5wf9eiyM

video for morde's gameplay and skills

http://www.youtube.com/watch?v=9l1lj_9Xg-E

video for Xin Znao s skills

http://www.youtube.com/watch?v=PWFsqDY1TFA&feature=related part 1
http://www.youtube.com/watch?v=mREET3ydbiA part 2
http://www.youtube.com/watch?v=Zrd6nmoCcBE&feature=related part 3
http://www.youtube.com/watch?v=3CRho5Lifoc&feature=related part 4

http://www.youtube.com/watch?v=rUJHjBVGhpE pVp 1

i think this master yi is such a noob player ,i mean master yi vs soraka and soraka wins?!?
WTF !?!
master yi can be better dan this!?!
am i right?
or im the only one playing with him good?

http://www.youtube.com/watch?v=rUJHjBVGhpE

http://www.youtube.com/watch?v=z3F3R-fUGug


NOW THATS WHAT IM Talking about a pentakill

this is the master yi i am thinking about ! :) !

if you have any questions ask on sas2222@mail.bg