Start with boots and potions with wisely playing going to dominate ur lane , Attack when u can but save ur mana to get kills when jungler gank.

Why that items ? Rly nice survibality with rly nice dmg in late game , u can carry ur team in early and mid game . Late game for u is engaging and start teamfights.
At all with that build u can fight against 2 enemies and kill both of them easly :)

Solo line need sometimes fast back to line ,that's why i take teleport ( like all solo top players). Ignite , to execute enemy when he run with low hp level. Or just do dmg on him and get a kill.

Runes are a little mixed , but i seek good combination for be a fighter with life steal ,and get life from passive, With protection which posses offtanks.
Masteries to avoid buying a Philosopher stone (hate that item , its look's like all stand under turret and get money only with standing).

When u start fight u using charge and three talon strike , when u do that release Battle cry power so cooldowns will disappear , of course if u got rly nice attack speed. Attack casters , for me xin is a rly nice caster killer, in team fights he make a chaos with his ultimate.
I think thats all. Ty for Reading :)