Hello i'm EskimoFee. I'm maining Lee Sin because he is a really awesome champ. I hope you like this guide. Message me if something is wrong, because this is my first guide on mobafire. Enjoy reading :)

Quintessences: You need your spells for dmg as lee, so CDR is nice.
Marks: You want to deal dmg. Armor reduces dmg.
Seals: As i said, armor reduces dmg.
Glyphs: Most of the enemies are AD, but in the lategame they is a APC that deals dmg

Normal AD masteries with CDR.

You want good damage so bloodthirster and last whisper are perfect. With the black cleaver its even more. But you would be too squishy without any hp, so warmogs + frozen mallet are nice for you.

Many Lee Sin players would max his Q, but I think it's better to max E and i will explain you why:
1. His Q can be dodged easily and you can't fight when your main spell is on cooldown.
2. Your E deals magic damage, so its immune to armor.
3. The %-Slow and attackspeedreduction will increase by maxing E.

Q: Sonic Wave/ Resonating Strike: This is good for chasing or even escaping( When you use it to jump to a minion)

W: Safe Guard/ Iron Will: This gives you REALLY nice sustain and a nice escape. You can max it first if you need sustain.

E: Tempest/ Cripple : This is a magic damage MS+AS Slow. This can make every adc useless.

R: Dragon's Rage : This is one of the strongest spells in the game( in my opinion). This spell has low CD, deals tons of damage and is nice for ganks.

Pros


-He is REALLY fun to play
-He can snowball nice
-He has good escapes
-He can chase well
-If right played, he has an aoe ult


Cons


-His lategame is weak
-High skill cap

Farming is really easy with lee. If you lose the lane you can lasthit with your Q and if not, you can use your E or just AA. But careul: Your E pushes your lane really fast, what makes you an easy target for ganks.