play safe at start but try to get early kill.
at lvl 6 u can get any otehr hero same lvl as u and if they are close to a tower, at half life go kill them and use heal and ghost to get away.
plz buy the item in order and dont get infinity edge befor frozen mallet. frozen mallet is my favorite item and u dont need more dmg since u max wuju style and u are doing regular crit with phantom. frozen mallet is the key of this build and it is why this build is soo awsome. give it a try and pwn the league
I can seriously say that I am one of the great master yi playing in LOL
this hero is easy to be good with, but being awsome with it and make 20/0/10 game is as hard as any other hero. have fun and leave comment and +1 thx!
good luck have fun