I like the build, don't agree with Lythoc on maxing TTS first, yeah it does really good damage, but the slow on AC is better, you land more hits where as people will usually get away from the 3rd attack if you don't slow them enough or don't have ghost/flash/exhaust ready for use.

Gonna suggest switching your Trinity Force and Phantom Dancer's position in your build. Reason being is you really want that damage earlier than 35 minutes in.

IE so late isn't even worth grabbng it at that point, grab some defense, that late in the game you should be built to deal damage as well as take it. I really suggest Building 2 Offensive Items after boots then build 1 Defensive Item then as you see fit after that.

Strength Quints? Why not more Attack Speed or Armor pen? Even Movement Speed Quints seem to be better on Xin's early game than More Flat Damage. Grab a Doran's Blade for the added damage if thats what you are looking to do.

I used to play xin exactly like this build, but it's not the best way I guess. I prefer to build some Tanky items or something like that. Maybe you should add a chapter where do you give us a some information what items you need in this or this situation. The Black Cleaver isn't that good in all situations, it works well with low armor enemys, but someone like Rammus or Malphite you should get a LW. LW just destroy armor tanks very hard, because of its 40% Armor Pen. I know this build works very good and it kills very easily an enemy, but add more information as I said already.

TTS should be skilled first seriously. It deals massive dmg and you can hit an enemy 3 times when you charged him with your dash. But everyone has his own opinion, I used to skill this first also, but I changed my opinion. Just try it out ;).

At the end good build, I'll give you a +.

Lythoc