Do pets heal their hp automatically over time or do you need some kind of potion? Is there another way to heal pets?

You need to go to the healer in order for that to happen. Link is here :)

You can use potions, but the easiest way is to go to the healer in riverside :P

The easiest way is to go to the Subeta Healer . Pets do not heal automatically, there are some weapons/potions that heal.

Thank you all!