Part of the reason why sometimes I queued in specifically into Ivalice or NieR raids as a healer is because it's one of the rarer ARs to pop via roulette (even happier surprise if they happen to pop via my own roulette! ), thus players that I'm paired with tend to be the ones that's not accustomed to the mechanics = more chance to make mistake. The more clown fiesta they are, the better. People dying means bosses dies slower = they get to do more mechanics...

.......I'm already missing day 1 of each alliance raids.