Even though this is extremely similar to the recommended build and for some reason the recommended build gets hate, i'll do my best to explain :) (No color or pictures cause im still a noob with mobafire). Wriggles is obviously for jungling. As lee sin ou don't exactly have problems with attack damamge based champions so MR boots, also because of the reduced snare/stun etc duration.Frozen mallet becuse lots of health a bit of ad to top it off and no one can escape ur gnaks early game. Warmog s for more duability and makes u nearly impossible to kill till late game. Atmas for obvious reasons. Upgrade the Wriggles to a Bloodthirster cause like i said u don't need armor cause u have no problem with ad and u already get a bit of armor from atams. Also the bloodthirster has more armor and lifesteal and since u won't be farming much anymore, more killing wriggles is useless now. Depending the enemy team I would suggest a Banshees veil because now u have over 4k health a good bit of mr, and no problem with teamfights and carrys. I personally like getting a Zeke's Herald for more health a bit of atack speed and even more lifesteal (For poeple that aren't getting armor). For poeple taht are getting armor get last whisper (Agin my personal preferance but I'd say get Banshees veil for more durability.