Oh. :u
My bad. :u
Though that is a bit off, here's a checklist:
7th Gate reached (24000000 build grist put in required)
Max Echeladder
Both hands with Max Power Weaponry
At least 2 Fraymotiffs, with max daily usages
Max aspect vial
3 Starmen, any more is a waste because denizens hit through invulnerability and deal 1/3 of your health in damage. (Players with an invulnerability fraymotiff might get in an extra turn by using it once and a powerful healing item that same turn.)
Set to Assault-Abuse for max damage (Even at max defense, you won't be doing much, and some just ignore defense boosting, ex. Time Denizen)
Pray. These things have a power of 25000 on average, some increasing in power throughout the fight, some heal, and the rage denizen has 31400 power. In addition, all boosts before battle are stripped, and you cannot be assisted in the fight. They are possible to defeat, though. I barely managed to kill mine...then found out the scale of power on the battlefield: 1, 50, 40000, 45000, 50000, 100000, 200000. Assists are mandatory there.
Oh, if you manage to reach the Black King (I'm waiting for the rest of my group to catch up to the battlefield), clear an hour or two from your schedules. And that's towards everyone, because the Black Kind fight takes place in real time, the Kind dealing damage proportional to damage dealt to it. Your dream self is able to go to the fight if your 'main' self is KO'ed, and if the King is dealt no damage in a five minute span, it KO's one random player's regular and dream self.
Summary: late game is terrifying.