The Pet Battles update was introduced on the 11th of June, 2016.
It included lots of new items, as well as allowing players to fight each other using pets. To start a pet battle, players can wrench the player they wish to fight, or use the /pb command. To make a battle pet, players will need 40 World Locks, 6 pets that have an element (Earth, air, water, fire, hit INFO to see), a Battle Pet Cage, a Battle Leash, and then wrench the cage, and get started! Note: 2 Battle Pets are required in the same Battle Leash in order to battle a player. Players can also use a Pet Trainer Whistle to call a Pet Trainer, battle it to attempt to obtain Pet Trainer Medals which can be traded in for other items.
Introduced items include:
Pet Battle Abilities
See main article: Pet Battle Abilities