Hi,
I won't b writing tons of things. This build works for me and it is pretty efficient.
I needed a cheap build with movement speed, CDR and ap burst.
Escaping in team fights or slowing an escaping prey.
The first 2 items helps you clear jungle faster.
Once you complete nashor and after lvl 11 you become a nightmare and a real assasin.

For startup: Always red. then you have the choice to invade the adverse jungle and YOU WILL kill him with your AA and Q. E if it tries to ecape. Or go top, mid to eliminate an early stupid pushing ashehole.

If you get the first blood, YOU ARE UNSTOPPABLE. The game is already won.

Enough said, try this and say AWAAAAAA.