there can be a side world that merle says that theres a pet competition and asks if you can send your pet there. he then gives you a spiral key to the world, zakopet (sack of pets), ZK for short.
after you go through the door, the narrator will say "you drop your pet by the spiral door". your pet is then on its own, going to the competition and notices trouble is on the way. your pets pedigree (the numbers by the DNA looking symbol) and age will improve its battle skills.
when it reaches the registration, a cat thug will tell you that the monsters have hindered progress for the other contestants and teach you the first spell, which differs depending on school. you will face from weak enemies (minor baby pets) to strong opponents (advanced epic pets recommended).
the pet equipped will be dropped off at the world. at the end, you can finally compete (pet derby rules), but when you reach the finish line, a draconian will stop you and you have to defeat him in the final battle. your pet will get different types of natural attacks as it progresses. you have to complete the level 7 pet quest to get there, and you have to be level 15 to get access there. hope you like it
i mean, you got legendaries who are asking for more things to do! what better way then to have their pets go do this! and not just one of your pets, but all of them lolz.