User blog comment:Slashingstrike/Master Yi Concept by SlashingStrike/@comment-1330314-20130810201618/@comment-1330314-20130810211707

The problem with AP Yi, though, is that he had no redeeming features: his poke was too pokey, and his heal was too frustrating. Tacking these features onto AD Yi gives him the flaws of both. Overall, you've actually significantly buffed Yi, which is the last thing he currently needs.

As a rule of thumb, spammy skills are bad. It'd be better to implement Double Strike as a passive or a steroid.

The other problem with giving Yi a stronger early game is that you need to take something away to compensate. Currently, Yi's early (and, to a lesser extent, mid) game is where he's at his weakest, but his late game is among the best for any champ out there. If you buff his early game potential without nerfing his snowballiness or late game capabilities, Yi would be super-strong in every phase, and would stomp even harder.