Hello, And welcome to my first guide for mobafire.
I'm not much of a pro player, But I play shaco a lot, And I thought I'd share my build with you.
This item build focuses on making you a damage dealer, with survivability.
After you've read this guide, Be sure to tell me what you think and how it worked.

Shaco is a very unique jungler, He has pro's but also some cons, Let me go over them.
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Pros
Very good ganks

You can troll people using your Q, and escape.

Slow with your E, Nobody may escape!

Ultimate has a hidden passive, You can block last ignite tick or tower shot using it! (Never forget) You can also use it in teamfights to make yourself untargetable for a short time.

Steal buffs at the start easy.

Solo dragon at around lvl 6.

Don't need a leash at the first buff.

Cons

Pretty squishy at the start of the game.

If his q is on cooldown then he can be easily killed.

Can be easily countered with some CC like a stun.

Berserker's Greaves <- They give you attack speed, Which is why i like to choose them.

Wriggle's Lantern <- Must have item for any jungler, Gives you armor, Attack Damage(AD), and a free ward!

Malady <- I like to build malady on shaco, Because of the 20 Magic damage per hit, And it also gives a lot of attack speed.

Madred's Bloodrazor <- Must have for shaco with Attack speed, Helps you deal a lot more damage, Especially against the tanky ones.

Frozen Mallet <- Shaco needs some survivability, As he is pretty squishy, Frozen mallet does the job, It also adds to your slow from your E, So nobody may escape you! >:)

Infinity Edge <- This item just finishes the build, Makes your damage go higher.

Since shaco has already a built in "Flash" you don't have to take it. I recommend swapping flash with the skills in the "Good" section. For the second spell take ignite.

Good=- Summoner Spells

Exhaust - Sometimes when your q and e is on cooldown, You just miss this 1 hit, Exhaust is definitely a good pick.

Ignite - Sometimes when you just can't get the rest of their hp off , Ignite comes into place. Definitely not a bad pick.

Ghost - This is what i swap flash with personally, Since shaco already has a build in flash, When you need to escape, I just Q away then turn on ghost if i need to. Great pick for shaco.

Smite - This is a must have, ALWAYS take this.
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The rest of the summoner skills are pretty useless for shaco, I recommend not taking skills not mentioned above.