Actually, she does. It is a special stage condition on 27-10. All of your team’s buffs are dispelled and Ursena heals every 5 turns. The heal isn’t much, though. ~200 HP, I think. That’s why you didn’t notice it. It isn’t that big a deal. (I thought it would be the first time, too, but she has so many HP to begin with, a 200 HP heal is barely a blip!)