Need team comp advice

Everything looks great on your team but you could become weaker to these new sword units, so Cordelia over Erika maybe. The thing is though that you get even weaker to the great new bow guy.

You could also run corrin(f) for the critical debuffs but you should make her 5 stars if you do that, and that takes positioning that could be difficult for this team.

Ryoma and Linde are insane pick luck gz to that. . My dream team would be Ryoma Linde(or robin (m)) Takumi and Julia( or Nino).

Back to topic. The question is best team ofc and you want good Boni arena points means you must pick for next season one of the 6 new heroes or robin(w). I would prefer team Ryoma , Linde. Cordelia and Robin (w).
Good color advantage 2range attacker and Linde can save people as semi healer.

Maybe you get one of the new one that you can trade Robin (w). Don t forget to get max points in arena everyone must survive ! Death of one of your chars reduse your ponts by ~60 overall.