Hello and Welcome to my Shaco by Xondrya Guide.

For runes I take Damage and Critdamage runes.

The Marks: I take here Damage runes for do great earlygame damage.
The Seals: I take here Critdamage runes. I like them a lot because you do with them so Damage and if you want to do a "Onhitkill" on Ashe then they are a MUST!
The Glyphs: Like the Seals with Critdamage too.
The Quintenssences: Like The Marks with Damage too.

I don't need to say much about my masteries because I usually take them with other AD Champions. 22 in Offense and 8 in Defense. I take Critdamage and Critchance in Offense because it's a MUST with AD Shaco. At defense I take armor, magic resist and health regen.

I prefer this build because at late game are so ****ing OP that no one can stop you!
At the start you buy Dorans Blade and Berserker's Greaves. Then you have a lot of damage and attack speed. Then you are going to buy your Zeal and the Vampiric Scepter for Phantomdancer. After Phantomdancer you buy Infinity Edge and then The Bloodthirster for your Core Build which goes like this:
Dorans Blade-Berserker's Greaves-Phantomdancer-Infinity Edge- The Bloodthirster
When you have your Bloodthirster go for health and attackspeed.
When all goes right you have this full build after 40mins:
Phantomdancer-Phantomdancer-Phantomdancer-Infinity Edge-The Bloodthirster-Frozen Mallet
Now you can buy your elixirs and you are going to pown the match!

At the skill sequence you must skill your best and usefullest skill at first: Your "Q". When you have it on level 5 you are going to do a 400crit :). At next you skill your "E" for some ranged damage and slow. And at last but not least your "W" which I found isn't so good for AD Shaco lategame but the fear is very useful in teamfights.
Your Main Combo will be:
Decieve+Jack In The Box+ Two-Shiv Poison(if he is escaping also exhaust) when the enemy is after all your skills on half live take ghost and catch him :D At this moment you are laughing of the dead :D

For Summoner Spells I take Ghost and Exhaust.
I think Ghost is the best spell with Shaco because you don't need flash cause of your "Q". Because I don't like Ignite with Shaco I take Exhaust which is very useful in early gamefor guaranteeing kills :D

For my Jungleroute after Sejuani patch the jack in the box is from 90 to 60 seconds. I don't have a lonely jungle guide I always take this guide by Donngosila is a really great guide enjoy: Play Video

Early Game:
At the Start of the Game I like to start with bluebuff ( if you don't have a jungler). After taking the bluebuff look for a gank. It's easy to make Firstblood with Shaco when you have exhaust. Jump with your "Q" then crit him and make Exhaust at him. So you get an easy kill for Firstbood. After make Firstblood return to your lane and go farming. A little tip for farming easily with Shaco: Always stay behind the behind the minions so you make more Damage and the enemy don't get EP.
Mid Game:
When you see that your made is pushing your lane look if you can gank in mid or a other lane. At the Midgame are a lot of Teamfights and you hope you are fighting in there. Your role in Teamfights are to do the most damage and escaping if they are focusing you.
Late Game:
When you have your End Build you can easily make a lot of Kills. You are lucky with Shaco if a Game goes longer than 50mins because at that time you can win all the Teamfights with him.

Here are some Pros and Cons of Shaco, The Demon Jester.

Pros

+Great Damage
+Tons Of Damage with his Crit
+Cool ultimate which alloweds you to make 2vs1
+The best dance Of complete LoL :)

Cons

-Dependable of kills/killsteals
-When Decieve is on CD you can't escape
-High mana cost skills early game

This was my Build Guide of Shaco, The Demon Jester. I hope you enjoyed it. Please suscribe the guide and if you like this guide make Thumbs Up :).
Have Fun playing this build and I hope we will see us next game in Summoner's Rift! :D