Dat unnoticed necro.

I agree with Zanthym, you need a Magic Pen and more items other than Rabadon's Deathcap, such as Zhonya's Hourglass or Abyssal Sceptre

The Items like Retribution said, does need alot of work. A lot of AP Champion players would think just filling their inventory with Deathcaps would Over power your champion but truely, it doesnt. You would need Magic Pen so I suggest including items such as Liandry's Torment or Void Staff, Sorcerer's Shoes isn't enough.

Clearly this Guide isn't finished, you should Archive it before it receives a lot of Downvotes.

Thank you all for the input, i will be editting and updating my guide shortly :)

I think the items could use a LOT more work.

Other than that, I think it's alright. I strongly suggest you update your cheat sheet in terms of runes and item builds, because those places are usually the parts where everyone looks first.

If you aske me, Ccange DC into ZH and the Nashor tooth into Lich bane. That would give more survivability and power for about the same cost.

Short And Sweet To Read, If I May Make A Few Suggestion Towards The Guide. Adding Just A Little More Content i.e Pictures, Tips & Tricks, Combo's etc. I Would Also Recommend Moving The Pros & Cons Up Near The Top For Better & Smoother Flow.
In My Opinion, I Would Probably Change Up Your Items Just A Little Bit; Get Rid Of The Second Rabadons & Go With Either Some Survivability Or Even A Abbysal/VoidStaff
Other Then That, Good Job & I Hope You Keep It Updated