User blog comment:Mich, Michele & Kuhla/Q&A/@comment-128.248.111.112-20140503163900/@comment-24809367-20140503173149

It might be that they're units are Anima, which gives an increase to HP gained when lvling up. Other than that the only thing I can say is that your opponents team was just stronger than yours. Do you have your whole team at 5 Stars and maxed out?