I wanna try create build easy in use, and deadly.

Please read very carefuly.

Core items are certainly is Youmuu's Ghostblade. When We activate ultimate and Wuju Style, we get kick of Movement and Attack Speed. Very useful are damage and cooldown in item. That help us in use Alpha Strike and RC. This champion has weak hp, so we must play carefuly.
I sugests in start of game use Alpha Strike on minions, Wuju Style only, when we attack enemy champions.

In late game very good is ganking on another lane's. With ultimate, Youmuu's and Alpha Strike, we can fastly get to enemy champion from brush. That confuse them.

I don't suggest Meditate, that spell is helpful in ending game, when enemy team try to focusing us, because we have huge DMG.

Sixth item must be subordinated to the situations.
If our team need help, i suggest buy the second Bloodthirster to the backdoor's. Always they back to base or try gank you, because you are solo. Then try hide, back to base, or fight if team follow them.

Normally i buy Frozen Mallet, to get some hp, slow and damage (in high AS is big chance to slow the enemy). When i activate Ultimate and Youmuu's, Master get 2.4 AS (max 2.5, so we don't need second phantom).

When is team fight, you go in last to the 'mess'. FOcus on mage's or that enemy champions, which have low hp.

PS. Use Youmuu's, Ultimate and Wuju Style together, it's very important. Alpha Strike to shorten the distance.

It's my own build, maybe i help you all.