Now first of all...The first time I used my new tactic (which is this one right here) I did real good, and this is what you should do...At the start of the game...people on my team was like...Dude use something else not Yi! He sucks like hell and stuff like that D: but tbh if u know how to control him he is good...First of all if u are not level 8 in the game u cannot use the setup I used above...For the summoner spells...but if u are level 6 just change it into Barrier and Teleport...if you are lower than that remember to get heal no matter what...Warning: Never EVER get Revive it is useless...

Now If You Use My Item build u can be pretty good...Another tip is to always get Q no matter what...It is your strongest move (In My Opinion compared to your other 3 moves)

Yi is a Jungler but never jungle at the start...According to my own past experience...Always take Top or Bot lane first and get your Yi to level 6 first before start jungling...When you are level 6 you should have all 4 abilities...If not you must get all 4 before Jungling.

When going in the jungle always take out the wolves then Blue or Red Buff (you might get an extra level if you beat the wolves)

When Attacking Press Q and Attack the enemy then quickly press R and E so you get more attack speed and more attack when doing that...always take out the smaller and weaker guys/monsters beside the main monster...Example if you are beating the wolves...Always take out the 2 wolves beside the strongest wolf because you will take less damage...The Ones on the side are weaker and if you knock them out you take less damage. Then take the main dude because you won't receive as much damage. If you do start loosing a lot of health don't forget to press W to re-heal.

W is very effective against Champions on 1 vs 1 or even monsters or minions. If you do W in a Turret Range...No Effective, if you do it on a 3vs1 champion fight...Not Effective 2vs1 is still okay sometimes.