Lee Sin has very powerful burst power. He can literally solo 1v5 penta kill with this build.

For runes, you really want that mixture of armor pen. with magic pen. to counter all armor the enemy team builds. Also you really need the extra Health for early game dominance. For Quints, I would take %life steal to maximize Lee Sins ability to take someones life. [/color]

With Masteries, I go 10/11/9 for maximum Hybrid. You really need the Bonus recalling for maximum Jianan. When it comes to BISCUITEER, well, its ****ing BISCUITEER. No one is going to kill you with it. Then you will need to get bonus damage to turrets and take reduced damage from turrets for maximum lvl 1 tower dives.

Starting with the classic double dorans really gives Lee Sin the ability to maximize his hybrid potential. The banner of command is just a powerful item on Lee Sin overall. It intimidates the enemy champion, so Lee Sin can immediatly jump onto the seige minion and just get that insta penta kill.

With spells, taking smite will help counter all enemy Banner of command. Taking Heal is just the Good Guy Greg move, to save your low elo scrub friendlys from dying.

On Lee Sin, I like taking all points into Q for maximum burst damage. You use your Q, and you just kick their face back to Cardboard 6.