How to play: Xin is a very strong top hero. when playing him you should always poke your player with your first skill. his passive makes him very strong until he is dead. a trick i like to do is when at 40% health run away from the enemy hero trying to lure them in, (this only works if they have 80% health or less and they are not fed) make sure you have mana and your first and third skill ready. you should also have wriggly lantern at this point. when the enemy gets within range of your third skill use it at the same time as activating you first skill by the time they can react they should already be in the air and on the run making an easy kill. with xin playing top lane always look for ganks, never go straight into battle but always come from the side bushes. only gank however if there is one hero or two heroes below 50% health. you should be able to get a kill or an assist easily
Spells: the spells i like to start out with are ghost and exhaust, this is because these two spells are very strong when ganking low health opponents. when running in for a gank always attack a little first seeing if you can finish them off without using a spell, if you can not then use exhaust first to slow your enemy, if then you still believe that you can not kill them then use ghost which should secure a kill.
Skill Build: For skills i would suggest to start with three talon strike and max it first. At level 2 upgrade Audacious Charge max this second go back and forth between the two until level five where you will upgrade Battle Cry. This is very effective against turrets.
Items: start off with 3 health potions and boots of speed.
If your team is deciding to go all mid or all bot in twisted treeline then start off with a dorans shield.
After you complete berserkers greaves move onto wriggly lantern starting with the lifesteal item. after wriggly lantern is complete move onto the black cleaver but before this buy zeal. this will help your attack speed. then quickly try to buy black cleaver. after the black cleaver is complete move onto the phantom dancer, which you already have zeal so it should be able to buy this quick. if the game continues buy frozen mallet.