User blog comment:Willbachbakal/(Champion Concept) Bak Mei, the Iron Fist/@comment-24385282-20150929005432/@comment-24385282-20150929022414

With a good amount of timing and skill, I just can't see how this champion isn't overpowered. Depending on the duration of the pull (likely 0.1-0.2 seconds, I can't imagine it being less than 0.1), enemies only have 0.3 seconds or less to use an ability or attack before they're pulled again. If they try to run but can't escape your range, you only get double the Ferocity from a succesful Halting Grapple, and its not easy to get from literally inside someone to 125 units away within 0.3 seconds while they're chasing, even if they have low movement speed. Essentially a very quick dash or some form of hard crowd control would be the only way to escape.

So all you have to do is get within melee range to essentially put most enemies into an inescapable melee duel where they'll barely get in more than one attack for every attack you get in. Due to, as you said, what should be a low base AD, this would be fine and dandy, they'd most likely be able to win the trade. Unfortunately, every 5-3 attacks the two of you get in, he gets to deal 20% of your maximum health as true damage.

Get a Phage item, a Frozen Mallet or Iceborn Gauntlet, and Phantom Dancer/Zephyr/Statikk Shiv/Youmuu's Ghostblade, finish off with a combination of the other items and probably Infinity Edge, Bloodthirster, or BotRK and no one is getting away during that miniscule delay any time soon, or at least not far enough away for it to matter by the time you're out of their CC (unless you're Morgana). He's just got too much CC and true damage on too low of a cooldown with his only limit being range, but with items he can make up for it with too much movement speed for it to matter.