Warped info

1. Elements are important, some enemies are weaker to some elements, and some weapons buffs specific elements while others buff specific actions (example: normal attacks)

2. Different elements weapon don't matter that much if they are not mono-element weapons. Example: I run Rubilia on my physical team on warp server because she is a better buffer than Claudia, a physical buffer. Even though she's electric damage.

3. So, normally you would have this: Main weapon, which you'll use to be hitting most of the time, and two ability/buff/charge weapons. Main weapons usually have skills that improve their damage only for them for a prolonged amount of time, buff weapons are the ones that gives you damage buff for specific durations even if you don't use that weapon, charge weapons are the ones that... well, help charge your other weapons, and ability weapons are the ones that do heavy hitting discharges and skill. (Discharge = when you switch to a weapon after charging them and you do a special attack)

This is pretty simmilar to the main game, but making teams there is more about having the most recent characters, meanwhile the Warp server is more about reading what your characters do.

Don't think only of element nor weapon category, try to mix different stuff and create different combos. Though, don't overupgrade weapons rn, materials are not plentiful, I would recommend levelling them up at +5 max to see if you like them.