Well, this is my first guide ever; I've been using this Lee Sin build for quite a while, and find that it's worked fairly well in all of my games, and decided to share it with the community. Don't expect too much in-depth information, as I'm still new to writing guides.

As a new guidewriter, I'd appreciate all feedback, whether positive or negative, when you upvote or downvote this guide. Thanks.



==========Work in Progress==============

For runes, I prefer to use 9 marks for armor penetration, 9 seals for attack speed, and 9 seals for cooldown reduction.

As alternatives, I find that armor seals, also work fairly well, but I prefer attack speed ones - the choice is yours.

Item Build:

I start out with a cloth armor, and five health potions - like most other junglers.
I'll explain the jungling route later, but after you go through once, you should have enough gold for a vampiric scepter; If not, just wait it out - you shouldn't be that far behind. After that, grab a madreds, and if you can, a wriggles lantern. By this time, you should be well on your way to ganking, and need some mobility - Mercury Treads are a nice choice here. The magic resist helps against most champions early game, and tenacity's a nice plus.

Mid game, you should have your trinity force - Build the sheen first, then phage, After this, you shouldn't be going back until you have enough for the full item.

Depending on the other team's composition, go with either a force of nature, or thornmail first, then the other. At this point, the game should already be over. If not, then grab either a bloodthirster or a black cleaver, depending on your preference. I usually go with a bloodthirster over the cleaver.

For summoner spells, Smite is a must have.

Other spell choices:
Flash - This could help save you in a lot of tight situations, or help with a nice getaway.
Cleanse - It's an okay spell, but I wouldn't recommend using it for lee sin.
Teleport - Helps with ganking, and quick movement to protect towers. If you take this, take the mastery point into teleport instead of ghost.

For jungling route, if I know my team can guard properly, and maybe give a leash, it goes:

Big Wolf, Golem (Blue Buff), Finish wolf camp, Wraiths, Lizard (Depending on health remaining, and if you ganked a lane inbetween), then double golems.

Otherwise, go double golems, wraiths, wolves, golem (Blue buff), then maybe lizard, or go gank.