This isn't meant to be an extensive guide or anything. This is just a heads up for the most fun way to play master yi. One of the things that almost no ap yi builds i have seen on mobafire include, is how key meditate is for ap master yi. if you get focused as ap yi, you can tank a ****ton of damage as soon as you get rabadon's. dont forget to spam alpha often, and dont be afraid to ks like a ***** early game. early game, use ulti as gtfo unless you are sure of a gank that you can get. you can level wuju earlier, but you generally only use for tower pushing, so its pretty much a waste in all other regards. if enemy team has an annoying stun/disable or two, then you can replace roa with banshees. if the other team has a lot of stuns/disables, you are useless, in almost all respects, because you cant tank at all. keep in mind that you can tower dive at lower levels because of heal, and you can also get into turret range first just to tank it for a friendly that wants to dive. If you get in a tight spot and think you are going to die, pop heal, and watch the magic happen. this can stall even what looks like the most impossible situation. if you cant tank a group or get stunned mid heal, and are going to die, then pop flash/ghost/ulti and/or alpha strike a minion that is further away from enemies. late game ap yi can tank multiple pwnage ad champs no problem as long as they dont have stun/disable.