Start of by going to Blue Buff (If you don't have a Jungler) and placing The Jack In The boxes directly behind the blue buff, if you don't have a jungler on your team the enemy team is unlikely to try and steal it, but if you want to be careful put your Jack In The Boxes in the Bush so you can escape if the enemy team comes. Hit the Blue Buff Golem Once then lure it into the bush. Once you have got Blue Buff go down the river to set up a gank.

1. Use The Active Of DeathFire Grasp Before Two Shiv Poison To Increase damage Output
2. You Can Deceive through walls
3. Try Use Your Ulti To Lure People Into Your Death Bush (Death Bush is alot of Jack in the
boxes in a bush)
4. If you are being chased and you go into a bush, use your Ulti then deceive Away, the enemy
has not seen you do this and they will think that your clone is you, also if you have time
make your clone walk in the different direction as you are going
5. You Can Use "Alt" to Control Your Clone
6. In team Fights put down a box for the mass Fear
7. If you are recalling in a bush make sure to put a Jack In The Box in the bush you are
recalling in

I Start off With the Amplifying Tomb and 1 Health Potion For Increased Ap. Then i buy the Death Fire Grasp for Its Active, then i work for Rabadons and then rylais crystal scepter. Then If there are any good players stacking Magic Resist i will buy the void staff, if not i will buy the Lich Bane then to finish of my build i will buy another Rabadons Death Cap to increase my Ability Power.

If this build is complete you should Do
1000+ Damage with your clone
700+ Damage with Two Shiv Poison
200+ Damage with Jack In The box

I know alot of people max 2 Shiv Poison Before Jack In The Box, but 2 shiv poison relies on Ability Power, which you don't have until late game.

Pros

Elusive
Very Slippery
Great Burst Damage
Can use Boxes As Wards
Amazing Ganker

Cons

Depends On Mana
When On CoolDown Shaco Is Vulnerable
Needs Blue buff whenever possible
Takes Alot Of Skill To Play Well
Farming Is Difficult Since He Only Has Two Shiv Poison And Jack In The Box
If you are Colour Blind Your Hallucinate Will Confuse You Aswell

I Chose Exhaust because after Shaco has used his burst he needs time to for his Cd to Come back so he can use Exhaust to slow them and to lower their damage and Ignite because then it is alot easier to kill

Flash: You don't need flash because you have Deceive
Teleport: Generally and Alright Skill
Heal: Heal is OK, but because Shaco is so elusive he i don't think he needs it.\
Fortify: Always Good to have someone with fortify
Clairvoyance: I Don't Like This Summoner Spell
Surge: Surge is OK because of its Ap Boost but i dont think it is needed
Smite: Good If You Jungle
Clarity: At the start you have blue buff so you dont need mp and then deathFire Should give you enough Mp Regen.
Ghost: Ghost is ok if you are chasing or Escaping
Revive: A Terrible Summoner Spell. Never Use
Cleanse: Cleanse Can be useful
Rally: Useless

I Chose these runes so you are extremely Over Powered Early Game and more likely to get fed.