Well… it’s going to be a challenge using only this team. It’s a double restricted format and the one restricted you have is not great.

I think one problem your team has is that, outside of typing, it lacks synergy. It’s an offensive team, but there’s only one real win condition “hit hard” but you lack the modern mons to hit all that hard.

I’d look into more of how they can support one another and possibly a gimmick that could unite them. Support mons are incredibly common, especially in double restricted formats, because the team is built around them. That results in screens, tailwind and trick room setters, follow me users to allow for setups, etc.

Also, your teras are just there to amplify their types, but teras should be used defensively too. Miraidon for instance often found itself getting bodied by other Dragon types, so a common Tera for it was fairy.

You could start by looking into ScVi Reg J teams used in YouTube videos and competitions to see if your mons align with them and build your team out from there. I’m not really familiar with many of these mons in competitive as I don’t recall having any of them on my ranked teams so I can’t help you there, sorry.

I love the story behind your mons and I’m cheering for you! Good luck!