Ok, This is my first guide on mobafire, so i won't detaliate so much this guide becouse i dont have very big experience playing this champion but i tryed this build like 10 times and won every time with scores like 17/3/6. This is a simple build wich everyone can use in a battle.I think some of the "recommended" chapters are useless becouse for example we all know why is Phantom Dancer so good for Master yi so I will jump directly to the most important part: how to play this overpowered champion.

Ok so this build is the best for 3vs3 becouse if u go up immediately after FB you should lvl very fast and noone (except fiddlesticks) can stop u lvling.
THIS IS NOT A JUNGLING BUILD!You can do it if u want but this is a ganking&farming build and this is a very easy build very good for new players.

Ok so this is the most important chapter of the build. I will try to make this chapter so everyone can understand it.U have 4 kind of fighting tehniques usefull for fighting different types of champions.
1.TANKS This is the base fighting tehnique for fighting tanks: u need just to kite them becouse u can run very fast so use alpha strike on them and then run until they have like 75% life than u can go kill them. use this combo: Highlander-Wuju style-alpha strike and u'll kill them if they dont run.
2.MELEE DAMAGERS Ok so these champions are just like u but u can beat them becouse u are one of the best of this kind. Remind dont be afraid to jump in abttle becouse u have huge lifesteal and atacak speed and atak damage so almost half of ur damage (60% crits) will return to you healing.You should be able to beat them using same abilys as in fighting tanks.
3.RANGED DAMAGERS Ok so these are the most difficult champions to kill. They have big damage and they can hide behind a turret or a wawe of minions and when u have low life run after u and kill u.That's what they're thinking when u have low life run from them and go in a brush. They'll think u runed from the brush and go to chase u but u have something special : alpha strike when they are close to the brush use it and with ur lifesteal u'll kill them .
4.RANGED MAGICIANS These are easy to kill becouse they have usually low life but if u have something like nunu, dont worry, he cant slow u and u can escape from his ulti.U can kill these like ranged damagers but easyer.

Ok, so this was my build. U cant say that master yi is weak until u dont try this build.TWITCH ISN'T THE BEST CHARACTER IN THE GAME, MASTER YI IS!.And something more, u can be the best with all characters all what u ned is time to learn these tactics which u cant learn from a build like this u need to learn the from ur experience.