Here's a build i tested out for some fun it accutally does pretty good just have to know when to meditate at the right time and don't fight alone unless it a 2v1 you can take them both out no problem so it shouldnt be that hard to win in a fight when you start off you need doran's blade i know i know... your like DORANS? yes it accutaly works none the less so start with that and if you can get fed hardcore cause this build is exspenive

so i have to type more than 5,000 characters for this so here we go when you play yi play him smart he is very squishy this build but the damage out put is overpowering seriously if riot found out about this build it should be nerfed its gonna be slow starting out cause the items are so expensive so be ready for the long haul of gold grinding just last hit minions when you can and try to get as much money as possible try to have lane dominance so you can have more money and keep there team from getting exp so it will be better for you later game once you get your first 2 or 3 items then you need to just gank gank gank cause otherwise you will never finish the build