what are your teams for Hera?
I went with:
SOD Luc (Max) +66 egg
Hera-Is Lvl 66
Hades Max
Hades Max
Siren Lv 43 (Max Skill)
SOD Luc (Max) +over 100.
You're going to need enough HP to need at least 60168 to bypass graviton bomb for Hera
First Floor: Not bad, I took out highlander with 3 gravs and a morning star, then had enough to heal back + timers.
Second floor: Stall to get some turns taken up + get rid of 50k hp, then SOD to wipe him out. Make sure you have enough orbs to heal back at least 11k hp for the next floor.
Third Floor: Not bad, just stall and get everything back up and don't use morning star since Hera will pre-emptively attack
Fourth Floor: Be mindful of how much hp you attack when using gravities and morning stars.
Fifth: Suck up a stone when he binds you. Do two rounds of 3x gravities, then finish him off with two morning stars. Probably will die a bunch of times like me trying to heal. Don't do what I did and use morning star when in between the gravities, I died, then died some more because the calculations meant that gravities did less overall damage and I had to stall 35 rounds just for another morning star.
pad wikia had a team with one less gravity member (a rainbow keeper instead). That might help with damage reduction.
Best of luck!
