Shen in this build is supposed to have the ability to do enough damage in the early and mid game periods, without losing any survivability.In this build i will show you how to balance out the output of damage aswell as ability power and survivability throughout the whole game - provided that you have good enough teammates.

Shen is best laned with a range or melee NUKE type champion which will be able to pull out a good burst of damage, such as the following: Olaf , Trundle , Shaco , Fiddlesticks , Cassiopeia , Corki , Heimerdinger , Jarvan IV , Maokai , Mordekaiser , Morgana , Nidalee , Nocturne , Orianna , Twisted Fate , Urgot , Vayne , Zilean.
1.Setting : If you are laning against someone who doesn't have much damage output or not too much hp you can play agressive
2.Setting : If you find yourself playing against tough champions such as Mordekaiser or Dr.Mundo or perhaps Alistar you should focus on grinding minions more
3.Setting : If your enemy is a high damage champion togeather with a support champion you should focus more on the support champion to cut off the support to the whole team later on
4.Setting : If you are laning against another Shen you should aim for him to use his taunt first or you could try and be his main target for the taunts

Depending on your opponents you always make diffrent builds.The build that i put in on the top of the page is the most recommended one , but you can always make some changes to the said build like for instance if the enemy team has more attack damage than ability power champions you should switch the Mejai's Soulstealer with a Randuin's Omen or if the enemy team has more ability power champions than attack damage ones you should go for a Quicksilver Sash or just double the Force of Nature.
Ofcourse if your team has enough offansive power than defensive you should go for a full tank Shen , which meens that if your team has a support champion you should go for the build on the top of the page.

The reason why i put so much magic resist on runes is mainly the problem with early game AP champions who make a lot of damage trough a few spells but with this much magic resist you can almost ignore their spells on the early part of the game and you can begin with a Null-magic Mantle and 2 healing potions.If we give an example as Akali or Annie laning against you they will almost always spam with those annoying spells such as Mark of the Assassin from Akali which is a real pain when she actually activates it and also Annie with her Disintegrate spell which supposedly deals a lot of damage on the second rank already...this way they will be rendered almost useless with the magic resist from the runes and items.
Since Shen's abilities are powered by ability power i took flat AP runes which give me a good start with the Vorpal Blades aswell as Faint and Stand United.
The movement speed bonus from the Quintessences is a good speed boost for high mobility while laning , it lets you avoid a lot of skill shots that may bother your farming.Aswell as letting you chase a lot better and gives you an advangate on the range of the taunts.

I chose defense masteries since it gives you the toughness you need on the early game but the best things in the defense tree is the ability power and attack speed boost trough "Ardor" aswell as the reduced damage income by 4% from Tenacity.You also gain some hp trough Veteran's Scars.
Moving on to offensive tree , i took ability power per level to enhance the skills that i use doring the game , i took the exhaust since it gives me an offensive ability aswell as defensive or fleeing one aswell as lasting 0.5 seconds more which is a lot of time in a fight , the attack speed boost is for the easier last hittin aswell as putting presure on the opponent champions , and the ignite boost gives me more ability power to enchance the spells i use.

If you are laning against some high damage opponents i recommend taking 1 rank from Feint instead of 3 ranks from Shadow Dash ofcourse Vorpal Blade is a mandatory spell to take as the start spell in the beggining of the game.You should use Shadow Dash to taunt as much as enemies possible this is best done if your opponent attacks your teammate with a stun in which case u can easly pick up both opponents with a single Shadow Dash and turn the tables on the fight.
As for the ultimate which has a long cooldown you should use it on a teammate which is fighting against a single opponent or 2 opponents maximum aswell as using it on a champion which is about to get heavly nuked to prevent the damage income.

This build was made by InsaneMarko EU hope ya enjoy it all ^_^ cheers