This is my first build on mobafire and i apologize for any language mistakes, English is not my first language.
I created it after i found that all other build have one special item that i hate:
Mejaji Soulstealer.
Yes it is a great item indeed, but only after you have 20 stack. Usually after you have 20 stack, you are the other's team primary target -> you die -> you loose your power -> your team loose. Next thing that I have found out is the fact that without exaust/rylai your ulti is most likely useless. As exaust isn't ready all the time, your most important item is rylai.

Runes:
As for runes, I like to go for flat ap and magic pen for amaizing early damage output. About evasion seals - they aren't so important, but they have saved me so many times that i just like them.

Masteries:
Typical for nukers: 21/9/0

Combo:
->->->->->
killer instincts -> ignite -> bouncing blade -> shunpo -> exaust -> death lotus

You may ask: why am I activing ignite at the beginning of the fight? Just because i put one of my masteries in burning embers,
that after i active ignite gives me +10ap witch is quite much in early, and even in mid game.


I'd like to write more about this build, but I don't have much time right now, and i don't have confidence in my english language skill: P
Hope you like it. Rate!