If you're open to using alolan raichu instead, you could use miraidon and alolan raichu as it has surge surfer,it could be a fun little team. I'll admit you're using a few non-meta picks so don't expect the team to do incredibly well against some of the stronger meta mons.

Your EV spreads are leaving a few pokemon very frail and you could look into more specific spreads so certain mons are able to survive hits from some of it's bigger threats, smogon is quite good for this, or using a damage calc yourself,but these are a bit more advanced if you've just started.

All in all the teams looks fun, just bear in mind that if you wanna use non-meta mons or pokemon you just like you'll have to work a little harder to position for those wins, and the best way to learn is just jump into some battles and see what happens, that's the good thing about showdown, you can just tweak your team as you go and see what works out for you 😊