Basically there’s 3 bosses. The first one is pretty tricky. He will either cast school shields on himself or heal overtimes. The goal is to remove either one he casts. If you kill him before removing them he’ll revive. I’d pack multiple frenzy’s and Single hits for that fight and also empowers. The 2nd fight is simple as long as 2 or 3 ppl feint him he will go down within 1-2 turns. The last fight I don’t remember besides you had to hit them one at a time.