so their skills are linked eh, no wonder on their mind they only have each other (and their mother) after all
I don't think that how they workHuh, thought I understood their powers but am not sure how the regeneration is supposed to work, I thought the one sister would make the other “forget” their injury.
Actually in classic/older jrpg debuff can work in most boss, the developer just lowered the chance to get hit by it, by large numbers.DoT and Status Debuff based abilities, the only powers that shouldn't work on a JRPG boss but they do.