I just tried him out in a bot game, and it was worth spending the 6.3k IP on. At first I thought well I should focus on leveling the skills that deal the damage like his skill shot or ground pound, but then I slowly realized his best skill is the shield/lifesteal buff. Combined with wriggles or bloodthirster, he's pretty damn awesome, almost unkillable. With the two dashes he has and his ult, he has very good escapability.
His damage was good too, but I think it's bugged because every so often in early games I was hitting for 600 damage every so often and it wasn't crits. All I had were doran's blade.
Lee Sin is a champion with a high skill cap. With the need to balance an energy poll, 7 skills to effectively use, a passive to balance, and great positioning needed, Lee Sin is pretty hard to learn to use to full potential.
"Strong Pokemon. Weak Pokemon. Good trainers should try to win with their favorites..." -Karen Platinum FC: 1635 1383 8209
I feel he's just too squishy, even if you get him 1-2 tank items he's going to get hit like a truck, and then do no damage. I think his skills could use a little more AD scaling, his life should be increased a little, and maybe his W and E reworked a bit. In team fights, he absolutely has to focus the squishies, problem with this is the squishies stay in the back. If you try to get near them, you're going to get CC'd/focused/destroyed. Against any good team he's not any good. Might be a good pub stomper, don't see him doing much outside of that.
Gamertag - Mythologick Playing - Halo: Reach, Starcraft 2, Tales of Vesperia