The legendary heroes—Zacian and Zamazenta—are a duo of Legendary Pokémon first discovered in the Galar region. They are the game mascots of Pokémon Sword and Shield. According to legend, 3,000 years ago, a cataclysmic event known as the Darkest Day was caused by Eternatus's awakening. Zacian and Zamazenta worked together to defend the region with the help of two human heroes. Together, they managed to take Eternatus down, forcing it back into another slumber, with Eternatus's defeat and the Darkest Day stopped, the two Legendary Pokémon retreated to the Slumbering Weald to return to their slumber, turning into statues while the two human heroes became Galar's new kings.