My ladybug pet has an ability to maycast lifebat. I have not figured out how to trigger it. If anyone has any idea, please tell me. It would be nice to know.
According to the Wizard101 Wiki, it is triggered every time the pet owner is successfully attacked. It's a mediocre healing spell, but it's still unique.
Off topic, but you could have an amazing healing pet with Batusi, Fairy Friend, Unicorn, Spritely, and Energizing Battery