Beidou / Furina / Fischl / Mika

fn rand_counter() {
  let counter = rand();
  if counter > 0.75 {
    counter = 2;
  } else if counter > 0.75 && counter <= 0.5 {
    counter = 1;
  } 
  else {
    counter = 0;
  }
  
  return counter;
}
active beidou; 
for let i=0; i<4; i=i+1 {
  fischl attack, skill;
  
  furina skill, dash, burst;
  
  mika burst, attack, skill[hold=0];
  
  while .fischl.oz {
    switch {
      case .beidou.skill.ready:
        beidou skill[counter=rand_counter()];
      case .beidou.burst.ready:
        beidou burst;
      case .beidou.normal > 4 && .beidou.dash.ready && .stam > 18:
        beidou dash;
      default:
        beidou attack;
    }
  }
  
  fischl attack:2, burst;
  
  while .furina.skill.cd {
  
    switch {
      case .beidou.skill.ready:
        beidou skill[counter=rand_counter()];
      case .beidou.burst.ready:
        beidou burst;
      case .beidou.normal > 4 && .beidou.dash.ready && .stam > 18:
        beidou dash;
      default:
        beidou attack;
    }
  }
}