1, World of Warcraft Nostalgia Service Witch King's Wrath version of the Panda Dance can be obtained through the learning of pet skill books.
2, players can learn the skill by purchasing or dropping the pet skill book. Specifically, you need to purchase the Panda Dance pet skill book and then use it on an eligible pet to allow the pet to learn the skill. It should be noted that not all pets can learn the skill, only eligible pets can learn.