On the final boss my demon trumpeter used the move holy melody, which is a move that fully heals the mp and hp of the lowest health person in the battle, enemies included. I assumed the final boss was still around above half health and I needed to heal someone below a quarter health. The move targeted the final boss and somehow missed, just not doing anything. I think that moment alone took 10 years off of my life for the pure shock of almost healing the final boss to full. I killed him on that run and I think about that moment a lot. I was streaming the fight and I think everyone else was equally as confused. This game rocks.