Ghost and Flash are especially useful here because you can just about get first blood on anybody if you have a full Crit Chance rune page with wuju triggered and the Brawlers. Hit a champ a few times, snap ghost, trigger Wuju, and its almost a guaranteed kill! Of course this is for aggressive players only, but thats all I play! ;D

You should have a pretty good feed going on by now, and to be the ultimate off tank glass cannon, you'll need a vamp scepter and a last whisper after that ghostblade! Then you'll want more damage output with an infinity edge! REMEMBER TO TRIGGER YOUR GHOSTBLADE!!! ALWAYS!

If it really comes to late game where nobody else is helping you carry, you drop onto a black cleaver and a bloodthirster - just make sure you dont dive into 5 champions at once from trying to chase the enemy in their own jungle!

Now, if there is a stun or 2 on the enemy team, try and wait for all stuns to be blown or wait until they are dead. This makes it easiest for Master Yi to move in for the rest of the carnage! WARNING: ENTIRE TEAM WITH STUNS....PRETTY BONED WITH THIS BUILD!

Yi is just about one of the best farmers in the game with that Wuju Style. Just make sure you're constantly in a lane killing creeps while the champs are away, but if you see a team fight in a midst, jump in as soon as you can so you can take those half-healthers and destroy! Also: Backdooring during teamfights you know your team will win without you is a great idea while you're at farm. =)

Yes i understand that some prefer armor pen and ad over crit chance, but having that crit chance with just wuju triggered is enough damage early game to wreck just about anybody, but if you want, go ahead and sport some armor pen Quints. Other than that, these runes will absolutely rock your world, just hope you dont get dry crits!

Pros
-Can pretty much outdamage anybody through the whole game.
-Vamp scepter helps Yi stay on the field all game.
-Even if you cant carry your team to victory with this early-mid game build, you should be able to backdoor easily.
-Can escape 90% of ganks.

Cons
-Glass Cannon (but thats what this build is made about anyway)