Every day was the same routine for both Brock and Misty: Wake up, breakfast, feed Steelix/Gyarados and their other Pokemon, battle challengers and hand out Gym badges to those rare few who won. They were certainly not expecting sudden hoops to materialize out of thin air while they were feeding their Pokemon, and even stranger, for Ash and Pikachu to actually come out of those hoops, along with a bizarre Pokemon that had devil horns and was in a perpetual state of mischievous giggles.
Once they had finally gotten over their shock, which lasted 15 entire minutes of just staring at Ash & gang, they finally went to greet their old friend. "So, Ash, who's this?" Brock asked Ash. "Oh, this is Hoopa. He's a Mythical Pokemon whom I befriended in the Kalos region. He can teleport us from place to place with his magic hoops. Hoopa, these are my friends, Misty and Brock."
"Pleased to meet you, Brock-kan and Mist-kan!" Hoopa shook Brock and Misty's hands enthusiastically. "Excuse him, he has his own peculiar way of speaking." Ash explained when they questioned him about their names.
Ash had mixed feelings about reuniting Hoopa; he did enjoy Hoopa's company and his magic rings did make teleportation easy. However it did mean having to put up with Hoopa's constant pranking and teasing; the Alola region was nearly turned into a scene of war and devastation when Hoopa thought it would be funny to bring Groudon and Kyogre in the same place. Ash was also pleased that Hoopa had full control over his Unbound form; and was even more amazed when Unbound Hoopa had battled Kyurem, Rayquaza, Regirock, Registeel and Yveltal all at once and actually won. The battle took place in a secluded, uninhabited are of the world of course, so there was no collateral damage.
"So, Ash, why are you here?" Misty asked.
"Well, I need your help, guys. I want to battle you. You see, the Alolan League will be coming and I want to get as much training before it so I can secure victory for sure this time. There's a 'new weapon' that I've been working on, and I want to try it out."
"Sure!" Misty and Brock readily agreed.
Moments later, Ash and Misty stood facing each other across the battlefield. It was a huge pool of water surrounded by rocks.
"Gyarados, it's time to shine!" Misty revealed her strongest Pokemon, which let out a blood-chilling roar.
"Charizard, I choose you!" Ash threw out a pokeball, revealing his strongest Fire type, which let out an intimidating roar louder than the roar Gyarados had let out.
"Oh, so it's Charizard, eh? This will be interesting." Misty smirked. "Gyarados use Hydro Pump!"
"Use Flamethrower!" Charizard let out an impressive stream of flames from his mouth, which collided with the massive blast of water that Gyarados shot out in an explosion of steam.
"Let's see how well Charizard handles this. Gyarados, mega evolve!" Misty pressed the keystone in her hair, and soon bright streaks of light enveloped Gyarados, transforming it into its much larger and stronger mega-evolved form: Mega Gyarados. Ash smirked.
"That's clever, Misty. But two can play at that game." Ash clenched his fist, and Charizard did so as well.
"STRONGER…STRONGER…STRONGER TOGETHER!" Ash chanted, and Charizard roared as a massive swirling vortex of blue flames surrounded him, transforming him into his bonded form, complete with its three huge spikes and its red crown. Ash-Charizard.
"W-w-what's this?!" Misty and Brock were staring in shock at what had happened.
"Did you guys watch the Kalos League footage?" Ash asked.
"Oh! So this is what's happened with your Greninja is it?" Misty asked.
"Yep! This is Ash-Charizard!" Ash said proudly.
Plenty of research had been done on Ash-Charizard once its transformation had been achieved. After scanning it thoroughly, Rotom concluded correctly that Ash-Charizard had actually changed into a Fire & Dragon type, and it had also received an incredibly huge boost in Attack, Defense, Special Attack and Special Defense as well as a more moderate boost in speed. And if that wasn't good enough, Ash-Charizard had gained a new Ability.
"Rain Dance!" Misty called. Gyarados roared, and clouds swirled overhead before heavy rain began to fall. Ash, however, smirked. He looked at Charizard, who also looked at him, and they both nodded. Charizard roared to the sky, and as if by magic, the clouds parted and the rain stopped, revealing the sun which, unless Misty was very much mistaken, began to shine a lot brighter and harshly.
"What's going on?" Misty asked.
"It's Ash-Charizard's new Ability, Drought!" Ash said. "It turns sunlight extremely harsh in battles."
"Incredible…" Brock muttered.
"Now let's go! Charizard, Dragon Claw!" Charizard's claws each became enveloped in a trio of glowing, green scythes of energy and with a single flap of his powerful wings sped off towards Gyarados with a tremendous WHOOSH! It was so fast Misty couldn't even give her command before Charizard slashed Gyarados in its torso, sending the water type crashing painfully into the rock wall behind.
"Now use Flamethrower on the water!" Charizard opened his mouth and a colossal torrent of raging red-blue flames shot out, its immense heat causing the water to evaporate instantly upon contact. Charizard continued his assault, the flamethrower increasing in size and intensity with each passing moment; the flames changed colour, turning from red-blue to completely blue, to white-hot flames that efficiently finished evaporating all the water in the pool, leaving a valley of rock which Charizard landed on.
"Gyarados, use Hurricane to blow him about!" Gyarados let loose immense gale-force winds that Charizard struggled against, trying to stand his ground. "Now, Hydro Pump full power!"
The gargantuan blast of water hit Charizard in full-force and slammed him into the wall. Ash winced, having felt the pain taken by Charizard. "Charizard, are you alright?" Charizard recovered and roared in defiance, to show that he was still ready for battle.
"Then let's show them our burning passion! Flamethrower!"
"Counter with Hydro Pump!"
The blast of water evaporated instantly as Charizard shot out a most explosive blast of white-hot fire at it, negating the Hydro Pump before it slammed into Gyarados, making it cry out in agony despite its resistance to fire. "Dragon Claw!"
Misty gasped in shock as Charizard flew overhead, Dragon Claw at the ready, and slammed its two sets of glowing green spears down on Gyarados's head like a sledgehammer, causing it to smash into the field, dazed and dizzy.
"NOW, CHARIZARD! END THIS WITH SOLAR BEAM!" Ash yelled.
Misty's eyes widened. "Gyarados, get out of there!"
With Drought in place, Charizard almost immediately fired a massive beam of green-white energy from his mouth, a Solar Beam supercharged by Drought without needing any time to charge up at all. The gigantic Solar Beam collided with Gyarados head on in a huge explosion. The dust soon cleared to reveal an unconscious Gyarados, reverted back to its original form.
"Wow, Ash, Charizard really is a lot more powerful now. Now Brock will face you." Misty said, as she left the stand. Brock took her place and sent out his Steelix, before mega-evolving it into Mega Steelix immediately. "Show me your true power, Ash! Steelix, Dig!" Steelix burrowed its way into the ground.
"Not gonna work! Charizard, use Earthquake!" Charizard stomped his foot onto the ground, and the field splintered and crumbled, throwing Steelix out like a rag doll.
"Steelix, are you alright?" Brock asked, and his Steelix nodded, despite being covered in injuries. "Alright, use Stone Edge!" Massive, blue, jagged stones shot out of the ground towards Charizard, hitting him square in the chest and throwing him to the ground.
"Ah!" Ash yelled, clutching his abdomen in pain. That move had been super-effective. Back on the field, Charizard grunted in pain as he got up from that Stone Edge. He roared, showing that he wasn't backing down.
"That's the spirit, Charizard! We won't be taken down that easily!" Ash said, clenching his fist.
"Now use Dragon Claw!"
"Stone Edge again!"
"Cut through them with Dragon Claw!" Charizard flew towards the oncoming blue stones before slicing them all down to splinters and shards with Dragon Claw. Brock watched on in horror and amazement as Charizard bore down on Steelix, whacking him in the face with his glowing green claws.
"It's time to end this." Ash said, and Charizard growled in agreement.
"CHARIZARD, BLAST BURN!"
"RAAAWWWWRRRRR!" Charizard became covered in a massive wall of completely blue flames, before punching the ground beneath him. The shockwaves travelled towards Mega Steelix, before the ground erupted in a colossal, raging inferno of an explosion that knocked Steelix out cold. An unconscious Steelix reverted to his original form.
Brock and Misty only watched on in amazement. That Blast Burn attack was the most powerful that they had seen; it put a Mega Charizard Y's Blast Burn to absolute shame. They watched as Charizard reverted back to his base form, and Ash and Pikachu went over to congratulate it, and they smiled. Maybe Ash was going to win a League after all.