Goku Black was defeated, his soul traveled by the same portals that had given the power to defeat him, however he would find himself in one strange world, in this world, he is a god, even if in a new body, and he would stop nothing to achive his goal
A meteor impacts the nation of Equestria, Planet Equis. Tranquility is quickly snuffed out when a poison begins to spread violently. The Princesses cannot combat this unknown threat, as no knowledge of it exists. Help comes from an unexpected source.