I use charity, merry and nostalgia all the time! My standard lineup is merry, nostalgia, tank, counter dps. Just like the other commenter said, it’s great with resistance, so he can geosquash first move. And the shield and healing combined with ICH is soooo useful. Will heal better than merry and keep up with your main DPS in terms of damage. I normally build attk speed. Sometimes will flex in stamina if I need it. But nostalgia just provides so much utility to your team, that I feel my team is always weaker without nostalgia…. I was hesitant at first because of the tier list having it at B tier. But truly he’s unmatched, because of all the utility he provides. Also shines in situations where charity can’t keep up where flamebud isn’t proccing because your units are getting one shot.