I'm gl player, but i like to see the new releases from jp, to see what is coming in the future and there's two 2 things makes me sad, 1st is that they still releasing characters 3-5* in game, where in jp is almost impossible to use 5* in the hard content without a lot of tm to make them useful(why not a 3-6*), 2nd is that a lot of those have a great/cool sprite and few good skill, characters like kamui(a badass samurai) liberto from ffxv, even Groom(the Mohawk thunder guy) or Leonhardt(that will be release soon), i think would be more fun if you could use any character(if characters was more balanced) you want like themed team like:

Ninja Team: Shadow, Hayate, Edge, Miyuki and Yufie or Yuri.

FF6 Team: Terra, Celes, locke, Edgar and Kefka or Leo.

Evil Mage Team: Golbez, Exdeath, Kefka, Emperor and Kuja(sad for this guy).

The Heroes Team: Cecil, Bartz, Terra, Zidane and Wol.

Dark Knight Team: DK Cecil, Leonhardt, Garland, Kamui(i think he is a kind of samurai/Dk) and gaffagarion.

FF9 Team: Zidane, Freya, Garnet, Amarant and md Kuja

Most of those characters are base 3 or 4, would be fun to see many of those teams in arena besides the base team that everyone use like

F2P team: cecil, exdeath(or 4 exdeaths) chizuru, refia and cod or bc lid(maybe one base5 like lightning, luneth or noctis)

Or the whale team that usually is 4 of the same base 5 like 5 noctis or 2 luneth 3 lightning or gilgys, this makes the game a little anti-fun. This is just a outflow sorry any grammar mistake or name character wrong.

One idea was create a system were they get some buff if the are in the same team like ff or bye class/type.

But you guy if could make a team with any character available in the game, what team would you make(name it)?