This is my AP Carry build for Lulu.
Everyone says she´s a supporter but believe she´s not!
Always I play her I can´t lose.
If you play this build u can only win if u dont feed or somethinge like that.
If u think ;"Omg, Lulu..a AP Carry xD!?", then i can only say, try it, u will like her on AP.
Well,I need to say this is my first Build on Mobafire so dont be to hard on me.

This Rune is perfect for all AP Carrys if u dont have it, buy it.

A bit AP isnt bad at all, and u need it if you buy mekis at the beginning.

More AP at the beginning is always nice.

http://edge2.mobafire.com/images/rune/greater-quintessence-of-evasion.png AP is the best, can´t say more!

For the Masteries i took Ability Power, Cooldown reduction, Spellvamp and at least MP regenration.

For the beginning I always take Meki´s cuz its a perfect Item for MP regeneration and u for Tear of Godness.
Now I always buy Tear of Godness or u don´t have enough MP and need to go back.
After Tear of Godness I buy Sorcere Boots for Magic penetration.
If u good with Lulu u buy Mejais.
But if u suck with Lulu or it´s your first time u skip Mejais and buy Rabadon´s Deathcap.
Finally u upgrade Tear of Godness to Archengel´s Staff.
Now u buy Zhonya´s Hourglass for Armor Ability Power and more survival ability.
Your last Item is Void Staff so ur spells make more DMG and u get Kills easier.

I always upgrade my Q spell for more DMG and CC.
Then i need to LvL my E for alot of DMG too and its a nice CC but u only need it realy to steal
(if u need that to be good...) and to kill Enemys with her Team MAates.
Cuz u can E a Team Mate and get him with Q.
Then at least u LvL your W its a very nice Speed boost cuz it give you Ability Power.
Or u can use it for 1 VS 1 or rescure Team Mates.
Cuz u can transform Enemys to squirrels so they can´t use any kind of spells and can´t attack you.
It´s a great CC!
But u don´t need it if u play a AP Carry.

For Summoner Spells I always take Flash and Teleport.

Flash: One of the best survivalability spells I know.
Teleport: You can use it if u can buy Tear of Godness and go back on a Lane very quickly to Def or to Push.

You can use Ignite instead Teleport.
But I prefer Teleport.
It´s a bit better, I think.

I hope u like that Build and please don´t downvote cuz you don´t like playing a Supporter like a Boss.
I always like Comments too, so please say what u like on my Build and what I still need to do more or do things better.
Thanks, Bye.