I believe this build is a good build because it has gotten me over 20 kills every match. Its is a very quick build to get and very powerful. once you get the bloodthirster you are set. This build is built for early game domination and being over fed. When you have completed this build all you have to do is sit back and watch their health drop like crazy. With this build i have scored five pentakills in one match leaving me with a score of 48/8/27. with the money i had left over i could buy 7 trinity forces and 1 infinity egde without selling any items. however due to your health being below 2000, if you are faced in a 1v1 battle against a champion who is overpowerd and does a considerable amount of damage- e.g. Jax- your movement speed allows you to get out of their fast and with a boost with your ulti you're virtually impossible to catch. This build is entirely AD (attack dammage) with a few perks here and there. with this build you will be able to solo the dragon once you have the bloodthirster which i normally obtain at lvl 14.

Many people say that yi is a nooby charactor but now u can shut them up with out even trying.