Most Pokemon fusions just involve multiple instances of ... The fusion choices aren't totally random, as the artist based them upon the Pokedex. Pikachu's #25 crosses with Tranquill's #520 ...
Pokémon Go has finally introduced Kyurem’s fusion forms, Black Kyurem and White Kyurem. That means you need to combine multiple Legendary Pokémon together to get these new powerhouses.