>>713123309
Play the game and you'll learn things, shocking I know, follow whoever seems to know what they're doing and learn from them what is and isnt worth going after.
Stack general damage buffs like ATK at max HP or when wielding two armaments, learn which buffs you need for certain damage types
You're supposed to fight together, only super autistic friend teams that all coordinate in voice split up, and its not that much of a difference.
Play Wylder or Ironeye if you wanna be useful right off the bat, maybe Duchess once you get enemy timings down
Have fun and git gud