First this build is for that players who know that shaco is a champ who deals insane damage just if you have some experience to know when to ambush a champ, to hide and attack him from behind or just F**k off and wait for team-mates and this is why ill show you how to do the things right

buy a cloth armor and 5 hp pots....after go and kill the 2 lizards and the after get the red buff.....now (at lvl 2-3) is the perfect time for a first kill so go and ambush the enemy on your chosen land from behind with a Decive and F**k him

In mid game you just do this:
1. kill as many minions as you can
2.hid and strike the small-hp champ(!!!not the tank with 50% hp cuz a tank = 2 or 3x a normal champ at hp!!! so better attack a 100% hp mage or something)
3.try to leave a team vs team fight for a chance to push (ex: the fight is on mid so you should go top or bottom and push as fast as you can )

In End-game you just stay behind and look for low hp champs and try to kill them (try to do it without any risk).......THIS SHOULD CHANGE THE MATCH IN A EASY WIN

Pros:
-a very strong killer
-moderate armor/hp
-ip farmer
-anti-tank/carry
Cons:
-low-mid magic resist
-must be very fast in killing a mage