Gothita should be banned because it restricts a large portion of the metagame from even existing and sets up on numerous Pokemon with its Eviolite Calm Mind set, to the point where you can literally lose if you don't have a physically offensive dark-type or generally powerful physical attacker. Balance teams are much more difficult to use because you need to be able to pressure Gothita at all times, and with teams that aren't offensively oriented that's close to impossible. In addition, Gothita can choose to run a Choice Scarf set which has a much easier time against Offense. While you can typically predict which type of Gothita set your opponent will have based on the team composition, it is impossible to know for sure, as the nature of what it does allows it to run varied coverage options to handle different threats. The Eviolite Calm Mind set only requires 3 moves for its success: Calm Mind, Psyshock, and Rest. The fourth move is completely dependent on what you want to support your team more, and could be any one of Charm, Sleep Talk, Thunderbolt, and some other options I'm forgetting atm. The Scarf set runs various attacks to hit whatever it wants.

Goth is mean pls ban