How To Unlock Joker Boss FightComment

Im doing this exactly and he just sinful shells me instantly

Ok sooooo how the hell am I supposed to unlock the Boss? Does it has to do with doing Elizabeth's request or what🗿

seems to be a hidden rule for piercing joker's null resistances? had aigis attack joker with pandemonium and got shell'd then and there

The Quintessence Bow has auto concentrate so that means if you have it equipped on yukari he will SS you

>>9 around 31k-32k, i use armageddon after i deal 21.8k damage

I tried going in to the fight on heartless just to see how it would go and he Sinful Shell'd immediately at the beginning of the fight. I had a Lucifer with party autos equipped. Not sure how that would break a rule. Is he supposed to take a turn first before you get to, and I would have blocked one of his hits? Is firm stance or null ailments disallowed?

Does anyone know how much hp he has knowing the number would make it easier to know when to use Armageddon

Using Rebelion at first turn he will use sinfull shell

I found another rule, if he kills everyone but Aigis and you attack him instead of reviving your party members he will sinful shell you

Using sataneal is a insta kill because I just got insta killed for having him

I'm 99% sure that having multiple team members (exclulding Aigis) blocking an elemental attack triggers Sinful Shell. I can say that for certain with Koromaru, Mitsuru (w/ Null-Fire) and Junpei killing my runs 3 times in a row until I figured it out. This is most likely what's that "unknown instakill" at Turn 5 is.

the rules also appear to be randomized per fight, sometimes certain things can be done with zero consequence

It seems there is also a turn limit that or a damage threshold that must be met at certain intervals. I followed all the rules and he still used sinful shell

>>1 It seems Fuuka's Theurgy doesn't count as a rule break

Shouldn’t Fuukas Theurgy be avoided though since it can give the charge/concentrate buff?