Nemu is a cloth wearer, and her debuff abilities use mana, though not much. What Cain has messaged Misha to look for, after explaining his new Companions, is anything with an increased chance for a debuff to take effect. Some creatures have natural resistance to magic, like they do to poison or elemental attacks.
The bards can not only pacify, but use an effect that slows or weakens the targets. It doesn't last long after they stop playing, so in practical use they can only create two effects between them, but the effects are incredible. Their motivational tune adds a third to their allies attack speed, not to be under estimated in this particular group, while the weaken drops enemy armor and strength by 20 percent.
Misha doesn't take long to find a set of clothes for Nemu, though Cain wishes that the base Stat modifiers weren't hidden by the system. It's hard to tell what sort of change they're having, other than the listed secondary bonuses.
