Me and my friends were playing, earlier today, a game of LoL and we encountered a build which was actually quite astounding. (Just so you know I am not to fond of Master Yi in the first place but this just made me not want to play LoL for the rest of the night.) Most people, when playing Master Yi use some sort of attack increase, attack speed, or life steal type of build so when I saw this player start the game by getting Needlessly Large Rod, I had to say it struck me as kind of odd. As the game progressed I heard my friends complaining about how Master Yi was healing to full health before, after, and during every fight. I believed them to be exaggerating so I just dismissed their claims, until Master Yi tower dove after me. Master Yi had under a quarter health and he activated his heal. I was amazed to see that he was able to out heal the tower and my own DPS. Later on, Master Yi used alpha strike on me, mind you that I had all my items that I had at the end of the game, and he took off approximately half of my health. Here is an image of his build so that anyone who does not believe my earlier rant can attempt to recreate this build.
*EDIT* I was the Orianna, I backed out and forgot to take a screenshot. My friend is the shyvana.