Today's episode of "Cheese Strats"
Are you looking for a no-skill way to increase your odds? An unbeatable strategy that requires no real commitment to excellence, just a willingness to be a huge turd to your opponent? Then this episode of Cheese Strats is for you!
Mid lane Sion cheese:
http://gameinfo.na.leagueoflegends.com/en/game-info/summoners/masteries/#1p-DBKuGe.1Fn.2HXESg00
3 AP quint, 9 mpen mark, 9 scaling armor seal, 6 scaling cdr + 3 scaling mr glyphs
A lot of you may have noticed that Sion's E cheese got nerfed, but did it go away completely? His minion toss is still one of the best harass tools in the game!
E W E Q Then max E > R > W > Q
Rush a
as your first item. It gives you mana and helps a lot with jungler gank all-ins and cs. Your full build is:

With this build, you get a good amount of bonus health as well as some mr and armor. You do a surprising amount of damage, especially early game. When you push your opponent out-of-lane, roam and secure kills on top and bot lanes with your cc and damage.
Late game you will not be nearly as tanky as a traditional sion, but you will do noticeably more damage and will still provide ample cc. Plus, your shield will be much more substantial.
Remember, it's not about out-playing or out-skilling your opponents. It's about hitting them with super long range poke and cheesing the system!