How do you get a pet on marapets

Multiple ways. After creation of your very first pet, you can change it or get more through different ways.
To get a different type of pet, you can:

• Make it drink a potion
• Use the Operations Portal in Enpiah to change it
• Buy a Costume and put it on the pet.

All of those are permanent.

A different way to get a different pet is simply through pet trades.

My Marapets Username: Callacose