hello, new to summoning

Hey, I'm new to the game and new to summoning. How do you heal your pet or do you just summon another when she's wounded? If you just summon another, how do you do that?

You can heal a Pet by using the Resta Tech when the Pet is in range; each pet has a move that calls them back to you to make this easier.

To use another pet, you have to scroll to another one in your Weapon pallette, assuming you have equipped one there. New pets must be hatched from Eggs, which can be found as drops, received from Prin's Collect File, or purchased from the Personal Shops.