While at first I was against the Aegislash ban, a lot of people have shown me how it was broken, and through reading I realized how Aegislash limited the metagame, Mega Mawile on the other hand is something very different, sure its extremely strong but that only doesnt make it ban worthy, Look at Kyurem-B, amazing offensive stats, with better speed and higher base power moves and it is still not considered the best in OU. Mega Garchomp is the exact same way, amazing offensive stats, decent speed, but still not an OU staple, Mega Mawile is strong but its slow speed really screws it over even if it has sucker punch, still looking forward to see how the metagame changes if it gets banned or not
Difference between mawile, kyurem-B, and garchomp is kyurem-B has very poor typing, a horrible physical movepool to back up that physical attack, and it's primary stab, outrage, is made nearly useless if a single fairy is present.
Garchomp can by stalled by gliscor, and unless scarf has low speed and easily to revenge kill with pokemon like greninja, HP ice manectric, or even talonflame for that matter.
Mawile on the other hand.. if she is running sub+focus punch.. she can avoid status, and hit every status user hard (sableye, heatran, etc) making status moves in general a check unlike aegislash.. plus SD can completely negate burn if you predict it, immune to toxic, doesn't care about paralysis being already slow and having priority.. the only one that screws it over is maybe breloom who can spore and let something like charizard Y handle it.. but there's a thing called switching anyway and if it subs first when you bring him in enjoy the play rough.
She's not easy to OHKO either.. thanks to that 50/125/95 defenses and intimidate..
-1 252 Atk Mega Garchomp Earthquake vs. 252 HP / 0 Def Mega Mawile: 218-260 (71.7 - 85.5%) -- guaranteed 2HKO
-1 252 Atk Pure Power Mega Medicham High Jump Kick vs. 252 HP / 0 Def Mega Mawile: 195-229 (64.1 - 75.3%) -- guaranteed 2HKO
-1 252 Atk Mega Heracross Close Combat vs. 252 HP / 0 Def Mega Mawile: 141-166 (46.3 - 54.6%) -- 59.8% chance to 2HKO
-1 252+ Atk Choice Band Talonflame Flare Blitz vs. 252 HP / 0 Def Mega Mawile: 258-306 (84.8 - 100.6%) --
6.3% chance to OHKO
1v1 she can safely SD on any of these hits.. and then priority sucker punch the entire game.. (bar talonflame) and if burned it doesn't really care.. basicly life orb damage she's getting since it's doing nothing else.