Master Yi is an awesome AD, Crit, and Attack Speed champ, who can roll face on pretty much anyone he passes.

This is my second guide to any character for League of Legends. Master Yi was my first champion on league that I had gotten to know really well. for quite some time now. I've tried playing him many different ways, and personally, I like laning the most, because I just have a better time doing it, so that is how I will do my guide.

I would also like to say that I am totally open for suggestions, questions or any comments and the comment section is open to anyone. Please feel free.

NOTE THAT THIS BUILD IS BRAND NEW AND IS BEING MODIFIED. REFER TO THE CHANGE LOG.

Pros-

-Fast attack speed.

-Can nuke people to bits in just seconds.

-Can kill tanks.

-His heal allows him to stay in battle longer.

-Can catch up to people with the combo of his ult and a Q

Cons-

-Reliant on auto attacks, therefore countered by thornmail.

-Squishy until you get frozen mallet

-Gets focused.

-Mana hungry

-Can get really cocky with this champion.

Since Master Yi is an auto-attack champ, the main tree is going to be attack. I don't fully put 3 in Brute Force because if you think about it, 3 attack damage is stupid, and I put 2 in it just to get the last mastery in attack. Now, for my 9, I have mine in utility because of the increased xp and increased buff duration. If you want, put it in defense or the armor and magic resist. This build is flexible so it's ok. Just please, if you go utility, don't fully put it in perseverance. I read a build once and the guy did the math for it, and it practically does nothing. You may as well get the little less time spent dead.

I'm not too great with runes, so you can choose what you want, but aim for the attack speed runes because they really do help as I've noticed. I like the health Quintessences (which may seem odd to some) because 26x3 is 78, and 78 health can save you a last hit.

I have tried A LOT of summoner spell combinations for Nocturne. I go with the Flash + Exhaust combo most of the time, but from time to time I'll take ignite.

Yes:
Exhaust - Can be nice for turret diving, getting a last couple hits, making an escape, etc.
Flash - Good for escaping, going through walls, getting to/ ahead of someone, etc.
Ignite - Tired of people getting away? Take Ignite. Also useful for ganking in the beginning of the game for that awesome 400 gold for first blood.
Ghost - I really do not like taking ghost for Master Yi. Your Alpha Strike targets a person and after the 4 hits finishes back to them. But if you really insist, go ahead. If you want a good get to or escape method close to Ghost, get Flash.

No:
Clairvoyance - I see this spell for characters like Zilean or other support or caster characters.
Fortify - Because it sucks (and most people agree)
Heal - It's more for tanks and off-tanks who can't heal like Singed.
Revive - No explaining needed.
Smite - For laning it's a big no-no. If you want to jungle, herp derp take it.
Teleport - It can be useful, but why when you have an ult that does it for you?
Cleanse - Eh. It can also be useful, but there are better ones.
Rally - Again, no explaining.
Clarity - You barely use mana. If you really need the mana (sometimes I do have troubles early game) ask the person laning with you to help you out and take the blue buff on your side.

My items are kind of a mish-mash of different build for laning Master Yi on mobafire.

I start out with Boots and 3 Health Hotions. Then, I harass my lane hoping to get first blood to get Berserker's Greaves right away. I proceed getting 2 Vampiric Sceptres to stay in lane longer. Then, I get Phantom Dancer, Infinity Edge, 2 Bloodthirsters, and last but not least Frozen Mallet. You should end with: Berserker's Greaves, Phantom Dancer, 2 Bloodthirsters, Infinity Edge, Frozen Mallet. If you end up reaching full build and have extra gold, you can always buy the consumable elixers to increase ability power, attack speed, health, etc.

NOTE: THE TOP BUILD TELLS YOU TO SELL BERSERKER'S GREAVES. DO NOT!!! KEEP BERSERKER'S GREAVES. I DON'T KNOW HOW TO FIX IT, AND HELP WOULD BE APPRECIATED.

It offers great life-steal, around 2 hits a second, around 450 move speed, and the health, slow, and the little bit of attack damage from Frozen Mallet is really nice. The Bloodthirsters are pretty flexible, but the rest I would leave alone. I recommend getting at least one, but if you trade on, I would take black cleaver. If there's a Jax really making you mad, take a Thornmail or a Force of Nature if really necessary, but don't really change anything else.

Master Yi's Alpha Strike hits 4 targets. If someone is heading towards a turret to go recall at low health, target the nearest minion out of turret range, and most likely it will hit them and hopefully kill them.

Meditate can be used in combat to become kind of invincible for a sec. You can go in a bush or behind a turret, meditate, and come back in a few seconds with more health also.

Wuju Style Always activate BEFORE you Alpha Strike. This way after alpha strike its already up and whatnot.

Use Highlander to catch up to someone and then proceed to rape. DO NOT use to get away from a situation or travel across the map. It's a waste.

A combo like Wuju Style Alpha Strike Highlander can really kick ***. try it sometime and see for yourself!

Team fights are easy for Master Yi. Basically, you target least squishy (support always comes first) to the least squishy. Let's say there's a team of Sona, Alistar, Amumu, Jax, Heimerdinger (pretty good team comb). You'll want to Alpha Strike the Sona, finish her, then focus Heimerdinger > Jax > Alistar > Amumu

Every game around mid game, right around my phantom dancer, I go out to jungle for a little bit, usually only coming out when my team needs help in a team fight or if they need help laning. Usually, I go for dragon, blue buff, red buff, then minor minion camps all around the map. It gives you some gold, some exp, some buffs, and the global gold from the dragon. Late game, when you have full items, you can solo Baron, but it's obviously nice to have some help.

V. 1.1 - Changed the masteries and runes section a little bit, added icons.