After like 50 attempts, I finally beat it. I had to constantly make slight improvements every once in a while since 3 of my teams honestly aren't that good.
- Team 1 killed Boss 1 on their own. Then they brought Honeysuckle to 15% HP, she full healed, and they brought her down to 45% HP.
- Team 2 brought her down to 25% HP.
- Team 3 brought her down to 10% HP.
- Team 4 brought her down to 0% HP.