API C PetBattles.ChangePet

Changes the active pet out for a different pet in a pet battle. C_PetBattles.ChangePet(petIndex)

Arguments

 * petIndex: Number - Accepted values are 1-3, but the order is based off of the initial order. Which pet is currently active is irrelevant to the index, if it was your 3rd pet when you entered battle, it will always be 3 on the index.