Why not full damage demo?

Lets take look at the too styles, then you can decide for yourself.

Tanky Dps Pros Tanky, with lots of Hitpoints. Stronger Late game Able to survive a team fight and force important champions out of fights. Cons Does not have a good burst. Needs items, weaker early game. Crowd Control kills him.

SPACE

Ad carry Pros Great burst and damage. Awesome early game. Able to kill key champions. fast enough. Cons Weak, easily killed. Less viable in team fights. Weak late game if not fed.

God tier Summoner Spells

The most used summoner in the league and not for a bad reason.It saved millions of lives, and gave millions away as well.To use it correctly takes some time, but its worth it. A good start is too flash over walls and not just anywhere. Even since its nerf, its still the most chosen.

This summoner is absolutely needed on any jungler. It helps a ton when clearing camps. Its a good way to secure most neutral monsters, like Baron.Dragon and the buffs. It can be used offensively as well, by last hitting blue or red when the enemy almost killed it.

Second most used after flash, it gives a great amount of speed which is awesome in escape and chasing. it allows you to go through minions and champions making chasing even easier. For some champions its greatly needed, like Singed.

This is the standard build for a laner, through if you are jungling then this build is better.

This is the most basic rune set up for Xin Zhao

Marks

If you don't like Armour pen, you can ether get Attack speed or Attack damage Marks.

Seals
There is little option for seals, it is best to stick with defense.

Glyphs
If you don't like mr, you can get some more defense glyphs or mana per 5 glyphs.

Core Items

this items is needed in any build you are going to take with Xin Zhao,Tanky dps or Ad Assassin.

Wriggle's lantern

Stats and basic info :
A great item for junglers and some solo tops. It gives some good defense,attack damage and to top it, some life steal.If you are jungling, getting Vampiric Scepter first is ideal.For solo top Cloth Armor] and five Health Potion is good vs most solo tops.

Unique Passive :

It gives you a lovely ward which helps you lane without being afraid of the jungler ganking you.

The Black Cleaver

Stats and basic info :

This item is your main source of damage, it gives you a ton of damage and a bit of attack speed.You should get this right after you build your Phage. If you are getting killed to fast, build Frozen Mallet first.

Unique Passive :

Ah, armor reduction per attack max 3. Now this will allow you to even hit harder on there carries. It will make there off-tanks less tanky too. Great passive, through if your enemies are stacking armor, I will get Last Whisper instead.

Frozen Mallet

Passive and basic info :

Your survivability in a item. It gives a stunning 700 hp! Through not as powerful as Warmog's Armor, it gives attack damage to comprehend. Combined with Atma's Impaler will give a ton of hp and attack damage.

Unique passive

It gives the amazing slow which will help you catch up with your enemies.

Atma's Impaler

Stats and basic info :

This wonderful item gives you Defense,Critical strike and a useful passive. A rather weak item on its own, but combined with atmog's impaler or Frozen Mallet gives some amazing statistics.

Unique Passive

"2% of your maximum health is converted to Attack Damage", Pretty much sums up this amazing passive.

Offensive items

Infinity Edge This is one of the key offensive items for Ad carry Xin. Its Quite expensive,through is worth it for most carries. It offers little use to Tanky dps who already have enough damage.If you feel like you need to extra punch and have the money, buy it. stars *** Trinity Force: This is the main source of damage for most off-tanks and some tanky dps.Its a well overall items which gives good stats, through there is better items for Xin Zhao. Buy this is you need some defense and damage, otherwise , don't. stars ** Phantom Dancer: This item is great for both Ad carry and tanky dps. It gives a ton of attack speed,move speed and critical strike. Take this item if you do not need any more defense, or you cannot catch your foes. stars *****

Bloodthirster: This item is risky, you get some extra damage and lifesteal, plus you get even more by killing minions. BUT you lose ALL your stacks when you die. I only recommened this item id you are doing great and not dieing. It's also a great replacement for Wriggle's Lantern stars * Last Whisper: The tank killing item! If your foul foes are stacking some metal, get this bad boy.Even if he has 500 defense, this item will make it only 150 defense!. And if you have The black cleaver it will be like he never bought the armor. Stars (-1 situational) **** Madred's Bloodrazor: Is your foes stacking some hp? 3000-4000? Then get item it deals magic damage BASED on a % of there max hp. It also overs some good attack speed and damage. I'd get this if your enemies are full of off-tank/tank champions. Stars (-1 situational) ****

Jungle Route

Start off with blue, Pick your Q as your first skill ,then let someone leash blue for your. Pick your E as your second skill. When your are done with your first camp go top or mid depending on the champions. The best way to get first blood is to go top, wait for the opponent to go for a last hit. E into the opponents face and Murder him with Q. A great way to save your E is to flash right into your opponents face, then Q and beat him up with your spear. Your will have him down in no time! Using Exhaust helps allot too. Then go into the jungle and kill wolves,
Wraiths and the Small golums. Port back to base when you have enough to buy Madred's Razords and Boots.

You should then go gank any lane that need it the most, usually the bot lane. When moving between lanes try to get a small camp or two, it will help you since this build isn't cheap.
Always ward dragon its core to the early game, it will give ether team a massive boost in gold. You should go for dragon when you have at least Wriggle's Lantern and Boots. The best time to do this is when the opponents on bottom lane is dead. Later in the game warding the baron will become very important, but have at least 1 ward on dragon as early as 5 min.

Mid games usually starts at 20:00. When most have 1 core item and a pair of boots. You should roam around in groups and gank the stragglers still laning. Pushing the lanes becomes essential.
If you don't have Wriggle's Lantern and a part of the frozen mallet you should get them as fast as possible!This is usually where the game ends if ether team has snowballed hard.

Team-fights that is all it is about. one team fight loss , means a loss of a couple of towers and even the nexus! You and your mates should plan out well who is the most important targets. Here is a small list if you are finding it very hard.

1. Ashe
2. Ahri
3. Lee Sin
4. Mordekaiser
5. Lulu
6. Shen