Demos i think you are from greece. If yes continue reading, if not ignore this paragraph.
Loipon, to build s einai arketa kalo kai eidika ta summoner spells su alla: ligo m ta xalas sta items. Tha protimusa anti gia force of nature ena akoma bloodthirstir i infinity edge. Afu exeis to warmogs ti to thes kai to allo to tanky item. Etsi ki alliws i triti s dinei zwi. Den protimas kai esy na petsokoveis kai ligo perissotero? Kali prospathia kata ta alla, wraio guide!
Well, your guide is pretty good and especially your summoner spells, but:i dont agree with the items you chose. I 'd prefer an extra bloodthirser or an infinity edge instead of force of nature. Why do you grab this tanky item if you have already purchased warmogs? You have your third ability which gives you life too. Don't you prefer to damage your enemies harder? However, you have made a nice guide ;-)

Love your guide! Just one thing, UPDATE jungle section! D:
Me gusta jung sion u see... :P

Anyway +1 here! ;)

whats so updated??

hey man....try out sion as AP, and make a compare, between the builds AP or AD

Really good (and fun ^^) build! Won a 3v3 game at level 30 first time playing sion and using this guide. Lost twice >.< but that was just from bad teammate choices.

I didn't see a section on it and I'm very afraid of the 17 pages of reading I have to do to find out if someone asked this(/cry), but I was wondering about Bloodthirster. My personal choice is to get Bloodthirster after my PD or before my PD(depends on the farm and if I'm being zoned, if I'm being zoned I generally go defensive items) and has worked fairly well(used this guide as a basis for my decisions =D). What are your views on Bloodthirster and why? I personally love it on AD sion because of how much lifesteal I can get without my ulti resulting in my lane sustain to be good and not having to use my ulti as much on minion waves to heal up.

HAHAHAHAHA!Like How u said he's no fun to play!HAHAHAHAHAHAHA!

Summoner's Resolve is a useless mastery if you are going to take Ghost and Exaust (or anything else not benefitting from the mastery, such as Revive).

Atma's Impaler still viable after the nerf?

Thanks for this guide man! I've been using it and I achieved my very first PENTA KILL!

Hey !
First,it´s a rly nice guide :) good work but i have a Question..
you use Ghost + Exhaust and set in the mastery tree 1 point in Summoner´s Resolve but why? is it not better when you use Wrath or Insight ?

greetz icesun

Very nice build and easy to understand for new player like me first time I tried Sion I got owned then I used the guide and now I own on him thank you