It's my first build, by i kind of own with it. i think it's a god build cause you got much life steal, and a buff thing thn your clone gets affected by it too.
Sorry if my english is baaaaad...

I get some crit chance for my runes, cause i think it's good for Shaco, then you hit more when you use Device, and in the backs.
And HP runes for.. more hp.

i got some life steal runes cause they are good, and your clone gets it too, then it survives longer time.
And Ghost blade is good when hunting enemeis down, cause it gets move speed and attack speed, and because you hit more in the back, it is good.
And triniti force, it gives a little in every thing, = its good