Oh, yes, for the readers who aren't familiar with this stuff, 'damage_cut_total' is a sum of things like:
Damage cut skills (like the main skill of the Joan of Arc line of souls) (can stack with each other)
Reflects
Elemental resistance buffs cast by kamihime (no stacking; these will overwrite each other)
Elemental resistance buffs cast by summoning an eidolon (I... think these overwrite each other?)
Elemental resistance offered by eidolon passive (yes stacking)