This is my first build in mobafire and I am doing shaco as my first guide(obvious... the title...)Most of you might be thinking:"hey this guy is new and this build will suck".
THIS IS A LANING SHACO!!!
LEGEND: JIB-Jack in the box

Pros
High damage as in **** high
Good ganker
Does not rely on teammates
Very good stealth
Jack in the box free ward!
Sexy dance =P
Cons
Without map awareness easily ganked
Considered biggest threat in teamfights(duh...)
Can be hard to escape when ganked
Crazed voice

Tip:when opponent is alone use deceive and get to his back for back stab and crit then followed by normal attacks and then BOOM! Two Shiv Poison =P (First Blood)
Many ppl who use shaco are very noob(no offense)but obviously u read this guide for tips and stuff....

Q: I pick ghost and ignite?
A: Ghost can be activated when deceived WOOTS Ignite good for securing first blood
Q: Why not Flash?
A: Double flash?????(X)
Q: Teleport?
A: Teleport are for jungling shaco for easy gank and reaching the blue faster and place more JIB at the jungle(I fail at jungling Shaco =P)
Q: Why no Heal?
A: Shaco Health's weak in the early game but as the game progresses there will be no need

I take mostly Attack Damage and armor pen runes.
This setup will give you good early game and good late game too.

Doran's blade is practically the best first item for any AD/DPS heroes.It also provides early game aggresion.Berserker greaves can also be switch with Ionian boots Ionian boots will be good to spam decieve and two-shiv poison.Infinity edge will be the core item of this build.Infinity edge increases your critical damage to 250% for normal attacks and with decieve the damage can reachh to 1000++.Critical can also work for Two-Shiv poison.The Bloodthirster is also another core item for shaco shaco with a bloodthirster can get nasty especially with its lifesteal and your damage combined i tested it and i can get 208 Hp back with a critical.Guardian Angel is there to irritate your opponent and have better survivability imagine when you the highest damage threat is dead and BOOM!Your back form your grave.Last whisper is good when taking down tanks and carries with that 20% armor pen.

I max deceive right away since you have low health in the early game,Its a very good escape tool and can deal damage when chasing enemies.However you might want to put JIB at level 1 as you can ward your brush.Two-Shiv Poison slows and deals poison damage to your enemy i max it second as in team fights it may be your greatest tool.