Pet
You can purchase pets from the Item Shop. Pets are account binding and in order to trade them, you need to seal it with a pet sleeping kit item. For each pet level, you need different level of pet sleeping kit item accordingly.
To start using a pet, right click the Pet in your inventory or left click it to drag and drop to the pet slot. The pet you have chosen will be summoned next to your character, and the pet's options will be applied right away.
See also: Pets · Pets, mercenaries and costumes
Pet Level up
The pet you have summoned will also gain experience points whenever your character earns Skill Experience Points by using skills. Your pet can level up when it has a certain amount of experience points.
Your pet will still gain experience points even if your character's skill rank becomes Transcender. However, your pet won't obtain any experience points when you attack dummies.
Pet Training
Pets can have slots just like equipable Items. The higher the pet's level, the more slots it will have. Each pet can have up to 10 slots. You can add options to the empty slots by Pet Training.
You can train your pet with the help of the Core Alchemist NPCs in each of the towns. You need 1 Force Core (Highest to train your pet, and you'll randomly get one from the 30 options.
Data from the Cabal Latino server and client (EP33).