This build i've been using for a very long time, and it works great for every single match, no matter if its a 3v3, 5v5, normal or ranked. What my build provides is a great amount of damage, early - late game. It also gives a great amount of health, so staying alive isn't a problem.

I'm using a mixed sort of masteries. 21 in offensive to give him the crit and damage bonus, 8 in defense to give him a little more holding in teamfights and 1 in support to give him less cooldown on his ghost.

I balance the "Q" Spell and the "W" Spell because the Sonic wave/Resonating strik deals a great amount of damage, and it's pretty much a must to have it as your first spell. Your "E" spell isn't as needed as your Safeguard/Iron will is, because to harrash the enemy without taking to much damage, this is a nice way to use the "W" spell.

There isn't much to say about the Rune choise of mine, only that it has a healthy amount of great bonuses to Lee Sin's damage.

Start off with Doran's Blade and if you aren't dealing as great damage as you might think, don't hold back on buying one or two more. I go with the Tanky-DPS item build, because the build i provide gives you a great amount of damage, and also a nice amount of health.