Ive been playing Lee Sin for 1 year,and i felt like he is really weak.In the early game,he owns the lane but in the last games,he got pawned by the carries.Now,i wonder if i can make him a Peeler but still tanky,
So i made this build.Hope you guys enjoyed,vote and comment are allowed :)
I am sorry that i did not put any hashtags in my Posts,because i just dont know how to put it.
HONESTLY.
:) Please enjoy

FLASH : I picked flash because enemies wont be letting you go easily,even if you had your W skill and a ward.Usually,enemies will catch you down with their flash,or with their skill.Because of that,i recommend you on taking a flash,so you can double-blink thru the walls and trees of the summoner's rift.

EXHAUST : Im also recommending you on taking exhaust,even if you have Frozen Mallet.Because enemies now will have a way to escape from you,their normal movement speed cant match frozen mallet's slow.So even with frozen mallet,cant help you on chasing them,and hitting skill shots.with Exhaust,reduce 50% movement speed is more than enough.
Use it only when theyr dying,or if they wasted their flash.If they managed to ran away,use your Ward and W skill.that will help you on getting near to them.

I picked defensive masteries and not the offensive.why?because Lee Sin was built for it.
You see,if you raised your offensive too hard,it will end on nothingness.In the end,it will give you nothing,even at the first game,Offensive masteries cant give you hurty harasses,except too squishy ad carries down below at bot lane.
Thats why,i recommend you to take Defensive Masteries more than offensive because it will help you on tankin the Harasses from enemy top lane,EXCEPT youre fighting Shen and the other Tickly harass character,you can rush your Q-Q combo to them,even without your offensive masteries your Q will be hurt full for first games because you got youre armor penetration runes.

BOOTS : NINJA TABI
Ninja Tabis always made my day.The power of reduce the strength of all enemys for 10% is just too amazing.BUT,Do not take ninja tabis if the enemies is way to fed,Because it will be useless.10% is not enough to fight the enemy's 100% overfed harass powers.

BLADE OF RUINED KING
Having this item,just turned lee sin into a nightmare.The percentage damage that increases by the enemy health is just too amazing.This will helps lee sin on aiming his Q as well works with the Hidden skill from the item.
The attack speed is just great too.This item just fullfill what lee sin needs.

RAVENOUS HYDRA
Now,Now Dear.If youre up too a backdoor,you need to clean the minions ASAP.Without this item,you are so screwed.
This item is your core item,because it helps a lot on creeping and backdoor pushing,also in teamfights it gives a bit CC on the splash damage.

FROZEN MALLET
This item is not that needed,but the slow per hit is nice and the damage with health bonus can make your day too.
if the enemy is overfed,i recommend to sell this and change it to other tanky stuffs,depending on the enemy.