I am conflicted here because I feel it should be banned because I've used it and it is ridiculous how easily it can plow through teams at +2 but then I think about how any pokemon with some set up can plow through teams. The difference seems to be how easily megakhan can set up and wreck others. Khan is bulky enough to take a few hits with base 100 def. and spdef. as well as an efficient base 105 hp which almost guarantees it will get to +2 and survive and with priority in sucker punch it doesnt have to worry too much about being outsped. Then again, status can cripple this thing worse than other pokemon. Being a normal type, while giving it STAB only in a type that hits nothing super effective, is actually great because it has a single weakness to fighting and i've already mentioned it's bulk assets and it has a diverse move pool. Also, more on a set I run, I use rock slide because parental bond is basically serene grace with extra damage. Khan's base 100 speed is great as well. Looking at what ive mentioned, it should be banned simply because the lack of weaknesses and diverse move pool allow it to set up and demolish teams a lot easier than other set up sweepers such as volcarona and salamence. I think it should be banned but I also want to say to the people who state that people are running rocky helmet ferro to stop it and that overcentralizes the meta, I want to mention that rocky helmet ferro was run early gen V and even late gen V in certain teams so that is not an example of people using a specific pokemon to counter a specific other poke. (Rocky helmet skarm though does seem oddly specific.)