Chevreuse / Fischl / Beidou / Yanfei

fn rand_counter() {
  let counter = rand();
  if counter > 0.6 {
    counter = 2;
  } else {
    counter = 0;
  }
  return counter;
}
active beidou; 
for let r = 0; r < 4; r = r + 1 {
  fischl attack, skill;
  chev burst, skill[hold=1];
  beidou skill[counter=rand_counter()], burst;
  yanfei skill, charge, 
         attack:2, burst,
         attack:2, charge,
         attack:2, charge;
  fischl attack:2, burst;
  chev skill[hold=1], attack:2;
  beidou skill[counter=rand_counter()];
  yanfei skill, charge,
         attack:2, charge, 
         attack:2, charge,
         attack:2, charge,
         attack:2, charge,
         attack:2, charge;
  
}