A jet-black Poké Ball turned slowly amid the radiance. With each rotation, it gave off an eerie pulse, as though endless nightmares lay within.
Clatter—
The black Poké Ball drew every eye. Like a bottomless Dream Abyss, it held them all in a trance.
This was the Nightmare Ball, a Dream-Made Object forged from the nightmares of countless people across the Sevii Islands and the power of a Darkrai so formidable that even others of its kind called it a god of nightmares.
Every white feather that touched the Poké Ball turned pitch-black, then dissolved into nothing.
This was true Nightmare Power—the source of nightmares.
"What is that? How could you possibly have such a thing?!"
Ripples swept through the Ancient Almia King's black eyes. As the Nightmare Ball drew closer, they swelled into a storm. An instinct he had suppressed deep within his host's body began to stir, threatening to take control.
For the first time in ages, he felt dread. If the body's instincts awakened, the best outcome would be a struggle that left them both ruined. The worst...
He would be exiled to the body's deepest recesses, a Land of Eternal Darkness, where he would be devoured and become nourishment for his host.
He could not let that Poké Ball come near!
Absolutely not!!
No!!!
"Aaaah!" The Ancient Almia King fought to break free of the Mist Ball's hold, but how could he so easily escape the Feather Cage Latias had spent so long preparing?
In the end, he could only stare as the Poké Ball drew closer and cry out in despair—
"Nooooo!"
The Dark Ball containing the source of nightmares slipped through the Feather Cage and merged with Darkrai's body. A flash of black light swallowed everything, then contracted into an unremarkable jet-black Poké Ball.