this is a guide designed for people who know lee sin.
it is just made to give some advise majorly about my item build.
this is NOT a jungle guide but it is a laning/build guide.

there is not much to say about the masteries in this build.
i know that if you are a regular lee sin player your masteries propably look similar. and of course as i said this is just an advisory guide so the masteries could look different.

i focus on sonic wave/resonating stike as it is a your main damage ability (that is, of course if you can hit something with it:P)

these are the standard AD-carry runes.

Armor pen marks:
these are helpfull in all the game phases and chop away a good portion of the enemies armor
Armor seals:
they are magnificent in the early game as most champions deal psysical damage at early levels and the mages only get their damage later on.
Magic resist pr. LvL:
as is said mages will build the majority of their damage later in the game and that is why i have chosen to take mr.-pr.-lvl.
Attack damage Quints:
great for ealy game damage.

i start off with a dorans blade. then i buy boots, according to the enemy team: mr or armor.
and then the ultimate solo ad lane item !Wriggles Lantern!
then one of the most crucial items for lee sin: trinity force and i start that build off with a phage.
after that you will see that you are becoming a bit squishy. its tilme to get a bit more tanky. but only buy a giants belt, because its time for some more damage and lifesteal so buy the bloodthirster, and be sure to stack that baby up.
during the purchase of the bloodthirster dorans can be sold to make room/more money.
now finish your warmog, that shouldn't be that pricey since you have the giants belt.
now go for the atmas to finish the warmog/atmas combor for awesome durability and damage.
now i've left room for the last item to be variable you can choose almost any item as long as it is sustainable or gives damage.
my choices are either hextech gunblade or guardian angel.