You were so utterly lost in a random desert, on your very last legs. You swear you could see some of the cactus moving closer with each tired step you took, with a dark look in their...eyes? Cactuses don't have eyes!! Which is why you need to bolt!
But wait, what's that? An oasis?
Well, normally, you'd be cautious, knowing how much this "desert mirage" thing tends to happen in movies, but at this point, you were so desperate, you would drink a mirage of water if it meant you could even try to remind yourself of the taste of fresh water.
When you practically crawled to the desert, you hunched over like a Lillipup and lapped up the water greedily...except, it was actually pretty refreshing. Either these mirages were REALLY believable, or...hey! You can actually see your reflection in the water. You even slapped the water to be sure what you saw was real...
As the surface ripples gently at her light slap, you immediately found yourself bent down more and slurping up the oasis. When you finally quenched your GREED, you took in your surroundings. Not too far away, were sandstone ruins...
Curiosity piqued, you made your way into the ruins, with the cool air hitting you like a Blizzard from a Glalie. Not to mention, it was dark, too. You had a hard time adjusting to it after the blinding sun from outside, but you soon came across a massive room with murals, depicting a gargantuan Pokémon bestowing great gifts and splendor upon stick figures. The gifts seemed to be falling out of rings.
However, one more thing caught your interest. There, sitting, almost waiting for you, was a bottle. The base was white and donut shaped, six golden rings hooped around the hole of the donut, and the top was slender and pink, with the top resembling vaguely a Djinn's horns and ponytail.
After deciding you could and not if you should, you open the bottle...
...Nothing happens.
WELL, that was a boring mystery-
"ALLEHOOPARING!!" A sudden voice cries. From the darkness, a Gengar suddenly attacks!
...And then disappeared as fast as it came, because a giant golden ring with a dark swirling mass within the hole swooped up the Ghost-type and took it away! You stood there, baffled, until a new Pokémon appeared before you. It was only about a foot in height, but it mainly floated to get around and compensate for a lack of legs. It's bottom half was wispy, like a genie's would be. It's got horns curving upwards with golden rings hooped on them, a pink ponytail, and a rotund face with devilish green eyes and yellow sclera, and a yellow forehead marking resembling the golden rings it is commonly associated with. It seems to have a golden hoop around its body. Its arms are disembodied.
"Haha! Did Hoopa startle you? Haha!" The Pokémon also speaks, apparently. "You look so scared, stranger-kan! I am Hoopa! You found Hoopa's bottle! Now, Hoopa can be more powerful than ever! Thank you, Hoopa thanks you, stranger-kan!" The mythical (YES, MYTHICAL!!!) Pokémon floated around your head gleefully. However, it seems as though this gratefulness is but a facade...
...
Oh wait this is the part where I say the thing.
A wild Hoopa (Confined) appeared!