Some people might be confused on the skill sequence so I'm going to explain that first. I start with Battle Cry first because that with a dagger at level 1 gives 0.91 attack speed. which is beautiful :D however, if you want to play more aggressively looking for the first blood at level one then start with your [Q] and take your [W] at level 2. I then take 3 points in my [E] maxing it first as it deal a delicious amount of damage, maxing [W] next for the amazing attack speed and maxing [Q] last as I really only use it for it's knock up affect, relying on my basic attacks with [W] to kill along with my [E] to initiate.

EARLY GAME:
I start with a dagger at level 1 because it works in great synergy with my [W] taking as many health pots as i can, that being 1. Build the dagger i bought at level 1 into boots i have great movement speed allowing me for great initiating during the low levels of the game. I then move on to a Youmuus as it's active is very beneficial and gold per 5 never hurt anybody.

MID GAME:
Moving on to my next item Atmas's i take the critical strike part of it first, however if you are against a very ad heavy team i suggest the armour, i take Atma's because it works realy well with my next item; Frozen Mallet. Frozen Mallet is not only good because it works well with Atma's but also other items as it's passive slows your enemies allowing you to use your basic attack combos to take them down, not to mention the durability that comes with it

LATE GAME:
Provided the game goes into the late game I then proceed to get a; Black Cleaver and a Phantom Dancer. The items work well in the late game, yet are no as strong in the early game, or at least that is what I believe. Black Cleaver will help you pierce the armour your enemies would most definitely have gotten by now and you save Phantom Dancer for last due to you have your [W] and Youmuu's.

Pros:
you are Xin Zhao
you barely will ever die
Cons:
you are only killable in a 3-5v1

I really have no cons for this build, as i have yet to lose a game with it.

this build is great for farming, maxing your [E] and [W] first allows you to clear minion wave really fast, and at about level 8 you can also clear the jungle in no time, often soloing dragon at level 13.