Masteries
Like the runes, these are aimed more towards early game. Ap 
Master Yi dominates early game, and because of this, your score should be nice enough to keep you dominating throughout the game.
Items For a Mid-Late Game Beast.
ALWAYS start with a dorans ring, it gives you anything an Ap mid needs: hlth, AP, and mana regen. But sir/your awesomeness why can't I buy
and 3
? The main reason being u dont need
. If u can last until lvl4, your 
should be MORE than sufficient for lane sustain. Plus a good jungler will give you 2nd blue even if not you can alwasy take it yourself.
By the time you B for the first time, you should have enough money to buy 1)
2)
. If you cant afford either, grab a
and a dorans ring and head back to the slaying grounds.
Please Sir, why sorcerers?
Magic Pen.
This coupled with your runes +
+ Masteries should be much more than enough to tear through early to mid game magic resist.
Then why Haunting Guise
THIS THING IS UNDERRATED. Magic Pen + AP + Hlth? Not enough? That's what I thought. ( You can sell this for a
later on. )
Rabadon's?
Single best Ap item in the game. Enough said.
Zhonya Hourglass
IMPORTANT: THIS ITEM WILL CANCEL YOUR MEDITATE. THIS IS BECAUSE MEDITATE IS A CHANNELLING SPELL. It gives you armor and a nice bit of Ap just what you need for a annoying cait. Oh yeah, it makes you a MOTHATRUCKIN GOLDEN INVINCIBLE STATUE. So yeah, thats that.
Rylai's
Nice health item with a great little trait.
Rylais: A beefy amount of hlth and AP coupled with a kickass passive. Enemys always getting away? get this.
Morello's Evil Tome
I call it the book of sexy. Cooldown Reduction, AP, and mana regen, all available with the new and improved book of sexy.
Tear of Goddess?
Its not really needed, like I said before, A good jungler will give its Ap the 2nd blue. If not, you can go take it yourself. ONLY buy this if absolutely necessary.
And that is the end of the items list.
Core items: Sorcerers Shoes, Morellos Evil Tome size=30, [icon=Rabadons Deathcap,
Optional:
,Rylai's crystal sceptre ,
,
Skill Sequence
Passive ( Double strike )
Every seventh attack made by Master Yi will hit twice.
This is not as important for AP Master Yi but it adds alot to your early game harass.
EX: 
in with your passive ready, Hit once with your passive, move out of turret range, Meditate to absorb the full force of the enemys pathetic burst.
Alpha Strike ( Q )
Hits up to 6 enemys at blinding speeds.
This is your Bread, no , your screwed. You dont have to even hit the enemy, how cool is that??? Just hit a nearby creep and Mr.Yi will automatically hit your target 80% of the time. And it has a chance to instakill a creep. Kickarse.
EX: Your chasing 
Caitlyn, shes getting away, your ults on cooldown, WAIT A MINION WAVE APPROACHES, the minion, pray master yi hits cait. Legendary.
Meditate ( W )
Master Yi Heals himself for a amount of hlth. While channelling, Master Yi gains bonus magic resist and armor.
No bread? nevermind, eat some crackers while you wait for more bread.
EX: the Caitlyn, she got 300hlth left but a ton of a lifesteal, while you wait for your to finish its CD, , Legendary.
Wuju Style ( E )
Increases Attack Damage.
This is a good skill for dps master yi, but we are AP. AP AP AP AP AP. Only use this when you can finish of a enemy whos running away AND your is on cd. I never really liked wheatbars anyway. I use it only for hitting tower.
Highlander ( R )
Cannot be slowed, increase attack speed and movement speed. Refreshes all cd if you kill and enemy while its active. Half of that if you assist.
You know what goes good with bread? Ladies. This is your lady, mines called Amber. Pick a name for yours and hit her before you kill the enemy.You better hit her hard or your not gonna get that penta. It refreshes all skills cooldown if you kill someone while its active.
Ex: Caitlyn is low, , , kill, Now 
LeBlanc is low, , double kill, 
Nasus turn ,, Triple kill, 
Sona, , quadra kill, 
Nocturne's turn, , Penta Kill. WHATS THIS?? Caitlyn teles back in, and you kill her easily. Multi Kill. Dominating.
Now are you convinced?
Match Scores
If you follow all this. Your match history should look something like this.
Notice my score, win or lose.
Summary
Ap Master Yi is the best Ap in the game. As long as your team engages the battle, you will almost 100% get a kill and not die.
I hope you guys enjoyed my guide. * Again its my first one. * Dont forget to try before rating.
GO FORTH MY FRIENDS! TO THE FIELDS OF JUSTICE!
Build Guide
Discussion (10)
Greater mark of Insight
Greater glyph of Focus
Wukong.
Morgana )
