Disclaimer: Pokémon is by Satoshi Tajiri

Pokémon BW: Yin-Yang Quest

The night before Mia and Taylor arrived in Undella Town, a meteor lit up the sky as it fell down to a sandy beach. The meteor fell with a large boom, but no crater was created. Instead, when the light faded, an unconscious Elgyem holding a purple crystal in its arms was visible.

"Please, you need to hold still…"

"Audino…"

Mia and Taylor heard those two voices and went over to find a Nurse Joy with her Audino trying to treat the Elgyem holding the purple crystal. "Nurse Joy!" Taylor called out, getting her attention.

"Oh, hello," she greeted. "I'm a bit busy at the moment."

"Aud-ino," Audino greeted. Mia looked up Elgyem on the Pokédex. Elgyem started to back away in fear.

"Elgyem, the Cerebral Pokémon," the Dex explained. "This Pokémon had never been seen until it appeared from far in the desert 50 years ago."

"It's jumpy," Taylor noted.

"So I've noticed," Mia agreed as she sent out Swadloon. "Swadloon, use GrassWhistle to calm it down."

Swadloon sang to Elgyem, calming it down enough for Nurse Joy to spray a Super Potion on its cut. "There, all better," she said.

"What's an Elgyem doing here?" Mia asked.

"I'm not sure, but the crystal its holding seems important to it," the Nurse assumed. "I know for certain it wants to go somewhere with it."

Taylor bent down to Elgyem's level and put a hand on its head. "If you don't mind me asking," he began. "What's so important about that crystal?"

"Elgyem. Elgyem," Elgyem explained.

"A friend?" Taylor asked. "And you think that crystal is the way to get to him?"

Elgyem nodded. Eyes glowing blue, a twig hovered in the air and began drawing an area of the sand with pillars. "Hmm…" Mia pondered. "That must have some connection to your friend."

Elgyem nodded at her. "We'll help you find him, Elgyem," Mia offered.

The Cerebral Pokémon smiled at her and floated off out west. Mia followed it, Taylor standing up and going after her. "Come on, Swadloon!" Mia called out.

"Swad-loon!" Swadloon said as she caught up to her Trainer.

At the seaside, Mia, Taylor, and their Pokémon walked near the edge as Elgyem led the way. "I wonder where his friend could be," Mia said.

"Hey, don't you think that Pokémon could be leading us into trouble?" Taylor asked.

"Taylor, you worry too much," Mia assured him.

Three Hyper Beams were fired at the ground before them, causing them to jump away. Three Kingler popped out of the sand, opening and closing their pincers slowly. Taylor looked up the Pokémon on his Pokédex.

"Kingler, the Pincer Pokémon, and the evolved form of Krabby," the Dex explained. "The larger pincer has 10,000-horsepower strength. However, it is so heavy, it is difficult to aim."

"Elll-gyy…" Elgyem shivered in fear.

"Swad-loon!" Swadloon said with determination as she ran up to the Kingler.

"You want to take them on, Swadloon?" Mia asked.

"Swadloon!" Swadloon nodded.

"Okay, Swadloon, use Razor Leaf!" Mia commanded. Swinging her head, sharp leaves came out from the leaves on her head and hit the three Kingler. One of the three Kingler launched another Hyper Beam.

"Dodge and use Energy Ball!" Mia ordered. Swadloon ducked out of the way and fired the green ball of energy from her mouth. The second Kingler's pincer glowed blue as it fired blue bubbles from inside it, destroying the energy ball.

"Use String Shot on the large pincers! Bind them shut!" Mia instructed. Swadloon fired the silk string from her mouth. She was able to bind one Kingler's pincer shut, before another grabbed Swadloon and began squeezing her.

"ViceGrip!" Mia exclaimed. "Swadloon, get out of there!"

"Carracosta, get Swadloon out!" Taylor instructed as he threw Carracosta's Poke Ball out. However, when he came out, Carracosta remained in his shell. The Kingler with its pincer stuck together slammed it onto Carracosta's shell, throwing him into a tree and knocking it out.

"Return!" Taylor said in concern as he recalled Carracosta. "As soon as we get out of the mess, I'll get you to the nearby Center, I promise."

"Swadloon, run!" Mia instructed in concern and shock. "Swadloon!"

Just when Swadloon was about to get crushed, she was engulfed by a blue light. The hood undid itself as a humanoid body came out of it and moved the pincer up. Leaf-like hands grasped the inside of the pincer as the Kingler looked on. When the light faded, Swadloon had evolved to Leavanny! She managed to break out of Kingler's ViceGrip and jump out.

"Leavanny, you're okay!" Mia breathed in relief and excitement.

"Lea-va!" Leavanny cheered as she saluted her. Mia looked up her new Pokémon in the Pokédex.

"Leavanny, the Nurturing Pokémon, and the evolved form of Swadloon," the Dex explained. "It keeps its eggs warm with heat from fermenting leaves. It also uses leaves to make warm wrappings for Sewaddle."

"All right, Leavanny, use GrassWhistle!" Mia commanded. Blowing into one of her leaf-like appendages, a soothing melody was played as the leaf glowed green. The Kingler fell asleep upon hearing the music.

"Let's go!" Taylor said. They all ran off.

"Elgyem!" Elgyem said.

"We're getting closer," Taylor translated as they walked on. The two stopped at rushing water with only rocks to hop on. Elgyem backed away from the water in fear. "Something tells me our friend isn't a big fan of water."

"Don't worry, Elgyem!" Mia encouraged.

Elgyem watched as she jumped off the river's edge and onto a rock. "See?" she asked. "Exactly as planned. Leavanny, have Elgyem climb onto your back."

Leavanny got down on its "knees" and gestured for Elgyem to climb on. It did so and the Nurturing Pokémon stood back up, holding Elgyem behind her. Taylor jumped onto a rock as Mia jumped to the next one.

A flock of Swellow flying overhead noticed the gem Elgyem was holding. They swooped down to try and get it as Leavanny was jumping, nearly resulting in her missing the rock. Mia looked up the Swellow on her Pokédex as the flock surrounded them.

"Swellow, the Swallow Pokémon, and the evolved form of Taillow," the Dex explained. "It circles the sky in search of prey. When it spots one, it dives steeply to catch the prey."

As the Swellow flew in to attack, the purple crystal reacted. The Swellow were engulfed by a blue aura and pushed back.

"Elgyem?" Elgyem asked.

"That crystal," Taylor began, sensing something in the crystal. "There's a Pokémon in there!"

"What?" Mia asked in shock as the Swellow recovered. One of Leavanny's hands glowed green and she jumped to a Swellow. She slashed it with her arm, knocking it away.

"Leaf Blade!" Mia exclaimed. Two Swellow hit Leavanny with a back-to-back Aerial Ace, knocking her and Elgyem into the water. Leavanny and Elgyem stood up. A yellow-green aura surrounded Leavanny as she slowly approached the Swellow. Her leaf-like hands glowed yellow-green as the aura faded.

"What's with Leavanny?" Taylor asked.

"Swarm, that's what," Mia answered. "If Leavanny or another Bug Pokémon is badly damaged, Swarm will boost that Pokémon's Bug-type attacks. Like so: Leavanny, X-Scissor!"

Leavanny jumped into the air and raised it arms, the leaves on them glowing more intensely. Releasing an X-shaped swipe, the whole flock was knocked to the ground.

The crystal glowed and the patterns on Elgyem's arms glowed. The crystal and Elgyem released shockwaves of purple Psychic energy, sending the flock of Swellow flying into the sky.

The group finally arrived at a place with five pillars and a diamond-like device inside the center pillar, the place Elgyem was looking for. "Go on," Mia encouraged.

The Cerebral Pokémon placed the crystal in the diamond-shaped device. The device reacted and floated up to a pillar, where it inserted itself into a slot on top. The crystal reacted with red energy and came out of the diamond-like device. As it floated up, a Normal Forme Deoxys began to form from the chest down.

"Holy alien sightings!" Mia exclaimed in shock as she took out her Pokédex. "That's a Deoxys!"

"Mo-ga!" Emolga and Momo exclaimed.

"Lea-va…" Leavanny breathed as it floated down to them.

"Deoxys, the DNA Pokémon," the Dex explained. "An alien virus that fell to earth on a meteor underwent a DNA mutation to become this Pokémon."

As Deoxys gently floated down, memories of its time with Elgyem replayed in its mind. When it finally landed, it opened its eyes and looked around. "Elgyem!" Elgyem cheered as it jumped up to the DNA Pokémon and hugged it.

"Morning, Deoxys," Taylor greeted as he walked up to it. "Your friend wanted to see you again."

Deoxys looked at Elgyem and returned the embrace. It looked at Mia and Taylor and nodded. "No problem," Taylor replied. "You should thank Leavanny, though. She helped Elgyem out."

"Leavanny," Leavanny said as she saluted. Turning its tentacles into a hand, the two shook appendages.

"Elgyem, Elgyem!" Elgyem said as he waved. Deoxys let go.

"It thanks us for the help and says goodbye," Taylor translated.

Looking up, Deoxys changed to its Speed Forme and took off into the sky, Elgyem holding onto its back. "So long!" Mia called out as they waved.