Is it better to go with the tier list or is it better to gather characters of the same element? I'm currently using Sterne, Ildyra, Sakura, Viktora and Frederika, but I have a lot of Dark UR units and Sterne is kind of my main
I guess I cant let the ai decide with auto? That's what I been doing but I think im at my limit as far as I can take that
It's recommended to build your team by focusing on either a single element, or a single attack type. This is so that VCs that give something like increased dark damage will benefit everyone in your team.
But in general, you need to have at least 1 healer/support and a physical tank or a magical tank, which are needed in late game content. They don't need to be the same element, but that would be a bonus.