Isley was badly wounded which was a part of Riful and the other Abyssals plan, Riful had planned to finish the job, but when she realized that Priscilla was stronger than Isley she had no choice but to retreat making it possible for Isley to take care of his wounds.

I don't know much about the others, but for some reason I'm not worried about Clare, she seems to know exactly where her limit is... I mean, the only reason she went as far as she did with the Lion king was because it was the worst possible situation.

Otherwise she has gone over the limits at least 4 times without any problems. When she met Raphaela before losing her arm, in order to heal her legs. When she healed her leg in order to save Galatea...... and so on.

The other cards though, are a bit more uncertain.