>>57894830
Bellibolt is going to be quite popular, so having one+ an answer for one is pretty important.
Kinda depends on how much XL candy you have, but I think Tinkaton+Feraligatr is a good core to start from.
You could use something like Gastrodon too, but I think Virizion might rise in use in order to counter Bellibolt as well.
Stuff like Guzzlord will probably be pretty good as well. So I could see there being lots of fairy types and the fire types to counter those.
This is what I've tried so far, it's only really struggled with Virizion in the back.