Ever sense I saw an AP decimate squishys I have wanted to play him so I looked up a guide I came across GirlStars Sion build.After a few games and a few trial and error items and runes I came up with this build.

Pros
* Burst damage
* Easy stun
* Becomes tanky
* 1 to 1 ratio on shield and stun

Cons
* Auto attacks don't hurt
* after getting some stacks people are going to target you
* People might rage calling you noob or that you know how to push a single button.

The reason I go with these runes is it gives you plenty of starting AP and magic pen giving you a total of 39 at level one that is including and both your and get a 1 to 1 ratio of Ability power meaning at level one you will be doing decent damage.

Other rune choices would be-

: because sion has a low mana pool.

: More burst damage :D.

This is my standard 9/0/21 on AP because I usually never get any mana items besides the ring.

: because Sion has a low mana pool and nothing is more frustrating then getting ready to gank that nice squishy like Teemo then running up to him and not being able to stun him and watching him run away farting shrooms.

: run stun win :D!

Alternative Summoner Spells

: Its like ghost but, not as long its better for surprising the enemy making them think something like "I'll see him coming".

It works rather well nice slow and damage debuff.

Good for chasing or escaping.

The reason I max and first is because those are your main damage you should not be auto attacking unless its to last hit a champ or creep or maybe after your stun while popping your shield.

Also for level one you can take either your Stun or shield depending on who you are laning with or what you plan on doing,For instance ganking in mid or at blue take your Cryptic Gaze use commonsense.

Even with the price change I like getting this for the mana and hp at the game start.

Extra AP and builds into items and you can get a health pot.

Able to waddle faster and you get three health pots.

After farming up in the laning phaze I get a the reason for starting with this is because, it increases your burst by a good amount and depending on how the game is going you may or may not want to get a soulstealer it is only 400 more its not a long wait for it.you should have this around 11-16mins into the game or potentially earlier if you draw 1st blood and receive an assist here or there.

After you have the rod you want to get boots of gank and then decide if its a good idea to get a soulstealer or not.If it is not a good idea then you can finish death cap or pick up some survivability or what feels right to you.My personal choice is usually finishing deathcap.

tl;dr?
, ,

These are where the tank comes in you probably have good amount of health stored up(2000-3000) do to your Es Passive you want to pick up items that will make the enemy's damage not make you go OW MY EVERYTHING,these are my personal choices-

*Agenst DPS, , ,

*Agenst magic damage, , ,
If it is a mixture of both then pick out which champs are doing the most damage to you.You can of course always get a If you feel the need for it these are just suggestions.

Well this guide is still incomplete and I will be improving it but, so far I have won plenty of games using this it is also my first guide so try it out and constructive criticism is always welcome.Also please let me know what I should add or something to try.Thanks for reading :3.

Also here are some scores for those of you who like proof