Crits always charge NP faster . Arts charge NP better than Quick , but Quick helps a little . Buster cards don ' t charge NP at all unless you have an Arts first card bonus applied . But even then , it ' s a really small amount . Since she ' s got a QAABB card layout , your best bet for charging NP would be an AQA Brave Chain . For even better results , try to make Arts chains with her allies , and put her Arts cards last in those chains . If you can ' t make a chain , try to at least put an ally ' s Arts card first and Jeanne ' s Arts card last . That way , she ' ll get the Arts first card bonus . Critical hits boost the amount of NP you gain from that card . You typically want to follow the same guidelines as above for NP gain , though .