Xin Zhao Build
Not Updated For Current Season
Though Xin has been nerfed, he is still a very effective champion in 1 v 1s, 1 v many, and team fights.
My build is just something I use and found very good, but at the end of the day its all down to personal preference, this is just my guide.
The reason I chose armor penetration runes over attack speed is with the items I have chosen my attack speed is already really good, and with armor penetration, it makes me very effective at low level to pick up early kills.
I have not yet finished a game with this entire build up, nor needed too, but if I did this is what it would look like.
I take flash and ignite plainly because Xin is great for starting team battles off with his ult and AoE slow, but he is still quite easily killed, also this is the reason I used the masteries for defence over offence, and well ignite is just awesome in most situations.
Finally, I didn't take dodge runes plainly because my dodge still wouldn't be greatly high with them and I prefer a more consistent defence rather then a chance. But again personal preference.
That is about all I can think of for now, I hope you like the build.