Monferno: Do Not Ban
In builder monferno has definitely lead to a more linear way of building and a more centralised metagame but I don't feel like teambuilding is extremely centralising. There is no doubt Monferno's an extremely versatile Pokemon, but it's generally quite easy to fit checks for it especially with the lack of offensive knock off users to easily weaken its checks and provide tempo. Honestly the one problematic set right now seems to be Taunt Toxic as it's able to break past the defensive checks for its more offensive sets but this leaves it even more vulnerable to offensive counterplay, from common pokemon such as Frogadier and Kadabra. In practice it can be hard to get Monferno's offensive sets in but it can definitely be annoying trying to figure out the set. Overall I'm not 100% sure with Monferno but from the games I've seen/played it's been pretty hit or miss and hasn't be as dominating as what others have said so I'm voting no ban for this one.