I don't think you regain HP when leaving wild shape (reverting to true form), rather, only when you use it to change into the animal form. It says "when you use wildshape," meaning, when you change into an animal. Reverting back is simply ending the effect, not actually using the ability. Otherwise, it would cost you a usage to revert to normal.
So let's do it this way: One memorized
Cure Light on you, one on Angus,
Lesser Rest on Angus.
Again, not self-serving; a few hit points can make a BIG difference in a prolonged fight. Caerth being down by 7 pts. is no small thing. How long did the last fight take? 19 rounds? That's a long time to fight when you're starting out even lightly wounded and exhausted. We're no good to the townspeople if we're dead.