i'm currently using sniper shot as ex ability, i know that i have dark ama, but i did put her in sub and have susanoo in main for her nuke and damage.
or you mean something else about being more versatile ?
for now it seems like most of the members suggest shingen as soul for dark, may as well pick her
usually all of them land, but even if not, it's being a while since we had a strong light enemy, so could pretty much overpower them even without all of them landing
not sure about harder content yet