The main idea of this guide is to backdoor the towers. As we all know, League of Legends is a game about destroying the enemy turrents, inhibitors and the Nexus. Have you ever had this type of situation: At mid-game, the enemy team is overfed and they are always grouping up trying to pick on your team that is very squishy compared to their huge amounts of AP and AD? Just teleport to a minion thats closest to the enemy side of the map, and destroy their turrent in 10 seconds. If they don't turn back and try to defend, you keep on pushing. When you see the enemy team MIA, then When you finally destroy the nexus, now you say to the other team, "SCREW YOU!"

Nothing much to be said. Attack speed is everything.

For the masteries, I normally have 21/0/9. This give me the best damage output. You can mess around with the masteries a little bit, but if you are going with my build in this guide, you definitely want to have "Good Hands" checked, because when you are backdooring the turrents, they tend to have you on the first priority on their list to kill. You might get away with ghost or your ult, but you will die lots and lots of times, so the 10% death time reduction is very useful.

CORE ITEMS

Berserker's Greaves.
Still not much to be said.

Phantom dancer
Great attack speed.

Stark's Fervor
Great attack speed and live steal, great for cleaning up minions

The Bloodthirster
Lots and lots of attack damage and lifesteal. Since you will be killing a lot of minions, its not hard to get 100 attack damage boost and 25% lifesteal.

OPTIONAL

The Black Cleaver
Need attack damage? Need attack speed? This item gives you both! AND it's great for cleaning up minions, deals a lot of damage to champions too.

Madred's Bloodrazor
Great attack speed boost, good attack damage, good for killing champions 1 vs 1.

Infinity Edge
Great critical damage, but too bad you can't hit criticals on towers, so not on the top of the list for this strategy.

Master Yi is very squishy at early game. So duo the top or bottom lanes, play safe and focus on farming(last-hitting). Use ABILITY NAME to kill a bunch of minions if they have around half health remaining. Doesn't really matter if you die once or twice, as mid-late game is where Master Yi shines.

Here is where you really start to annoy the enemy.

If in early game you didn't die and have been farming properly, then you should have berserker's greaves and emblem of valouremblem of valour and zeal ready to go. If you had been killed several times, you should still be able to get berserker's greaves and emblem of valouremblem of valour OR zeal. It does not really matter which one you get first, emblem of valouremblem of valour gives some lifesteal which might help you in killing the minions and zeal gives you more attack speed which makes destroying towers easier. Personal preference really.

As soon as you start to get in groups and have team fights, keep away from the fighting and silently lead a pile on minions up the lane. Use to clean up a little bit as soon as you see them coming. When you got to the tower, activate and and start attacking the tower. keep focusing on the tower until it's gone or an enemy champion comes. If you are surrounded by enemies and you know you are going to die, just keep attacking the tower for as long as you can. Trade your life for their towers if needed be. You should be able to get a lot of money this way, because of all the minions that you killed(PHREE MONIEZ) and the turrents that you destroyed.

At late game you should have the black cleaver and/or madred's bloodrazor. Now you should be able to kill some of those enemies that try to take you on 1 vs 1 with and activated.

If your enemies are overfed and is owning your team, tell them to defend, stay under a tower and stay grouped.
DO NOT TAKE RISKS AND CHASE DOWN A ENEMY CHAMPION!!!
DO NOT LET THEM TOUCH YOUR NEXUS!!!
Now it's your time to sneak out, gather a line of minions, and push.

Master Yi don't require a lot of team work. If your enemies are fed, BACKDOOR THEIR TOWERS! If your enemies are not fed, BACKDOOR THEIR TOWERS ANYWAY! Just imagine the look of your enemies' faces when they got 50 kills yet lost! xD



This is actually my first time making a guide, not very good organization, but I've tried the best I could.