Alexa Comes to the Rescue

Moments before certain doom, a long arrow with an orange tip pierced Mewtwo in the back, causing it to be wrapped in grey chains made out of a mist-like substance. A hundred yards away, Ash's sister Alexa stood there with her Riolu next to her. Mewtwo spun around to see what had foiled its plan. 'You shall be the next one to perish, little one,' Giovanni's Mewtwo declared, breaking the chains that bound it.

"Alexa, get out of here!" Ash choked out, trying to catch his breath.

However, before any harm could come her way, a being of dark energy spun across the landscape and collided with the Mewtwo, knocking it to the ground. Ash looked up, and standing next to him was an Incineroar. At first, Ash thought the Pokemon belonged to his sister, since he knew she had a Torracat. It wasn't until the Pokemon showed a toothy grin and gave the trainer a wink and a thumbs up, that Ash smiled wide, knowing this was one of his strongest Pokemon who had come to his aid.

'The Cavalry's here!' Incineroar exclaimed. 'I've been stuck with that dorky Professor Elm for so long, I've got some pent up aggression I need to let out.'

Incineroar cracked its knuckles and extended a very large hand, helping Ash back up to his feet. Stepping out of the shadows next to Alexa, was Ash's Decidueye.

"Man, am I glad to see you guys!" Ash cheered.

"I decided to go to the Pokemon Center to give Professor Elm a call once things started to look pretty bad. With all your other Pokemon on Mount Silver, I figured you could use at least these two to help us out," said Alexa running to her brother, with Decidueye flying at her side. "What the hell is that?!"

"First of all, I love you so much! THAT is a Mewtwo from a different dimension. We have to destroy it," Ash said. Mewtwo rose back to its feet, with a harsh green glow in its eyes. "What do you say boys? Wanna help me out in this battle!" Both of Ash's Pokemon from Alola let out a battle cry. "Incineroar, use Darkest Lariat! Decidueye, use Spirit Shackle!"

Ash's bipedal tiger pokemon let out a roar and cloaked itself in dark energy. It sent itself into a spinning motion and collided with Mewtwo. Mewtwo flew backwards, unable to comprehend what these new Pokemon were. Ash's Decidueye elongated one of its vines, and grabbed it with its wing, making it resemble a bow. Decidueye then fired arrow after arrow, striking Mewtwo in the legs, and chest. Each arrow grew a chain that kept the Mewtwo anchored to the ground.

Mewtwo rose up and created a Psychic barrier that kept Decidueye out, but Incineroar was able to pass through since it was immune to Psychic attacks. Within the barrier, Incineroar and Mewtwo began circling each other. 'I'm going to tear you to pieces, you Psychic freak,' Incineroar said. 'Then, I'm going to drag your carcass to the Pokemon Center, so they can heal you, just so I can whoop your ass again!' The opposing Mewtwo let out a screech and flew directly at Incineroar. Incineroar, who was very nimble on its feet, spun and dodged the attack. Incineroar then dashed to the enemy, driving its knee into its stomach. Incineroar spun the Pokemon around, and grabbed it by the waist, so Mewtwo's back was to Incineroar's belly. Incineroar threw Mewtwo over its head, performing a suplex on it. The Mewtwo landed hard on the ground. As it rose back up to its feet, Incerneroar's claws glowed black as it performed a Throat Chop and Sucker Punch combo on Mewtwo, sending it to the ground once more. The Psychic barrier surrounding the two Pokemon faded away.

"Yes!" Ash called out. "You guys are doing great!"

"Professor Elm also transported these over as well," Alexa said, handing over two Z-Crystals to her brother.

"Incinium and Decidium-Z," Ash said, examining the red and green crystals. "Ahhh! I can't use them without my Z-Ring!"

"Ash!" Called a voice from the other side of the wall of flames. Ash turned and saw the bloodied face of a "maskless" Mask throwing a Z-ring through the wall of flames. Ash caught the solid white bracelet in his hands. Sliding the device onto his wrist, he could feel Alola's Spirit surge through his body once more.

``I never thought I'd be doing this again,' Ash thought to himself. 'But this is amazing. It's almost like I'm back in Alola…' Without missing a beat, Ash perfectly performed his first Z-Move dance in years.

"You're up Decidueye!" Ash said, placing his Decidium-Z onto The Mask's bracelet. Performing the Ghostly movements necessary to pull off this Z-Move, the orange Aura of the Alola Region radiated around him. Soon the energy made its way into Decidueye who stretched its wings, before pushing off the ground with its long legs in a blur. "Silent as the night, never missing your target! Let's take him out with Sinister Arrow Raid!" Twirling in the sky, many of Decidueye's quills left its body, rising into the sky with the Pokemon. From the ground below, Giovanni's Shiny Mewtwo charged a shadow ball in its hand. Decidueye paused in mid air, with its Z-Energy still swirling around it. Knocking a quill into place, Decidueye drew back, prompting all of the arrows around its body to tilt down towards the enemy. Mewtwo fired first, but before it could hit its target, it fizzled out thanks to a single arrow passing through it. The evil Mewtwo gazed up as a barrage of Decidueye's arrows rained down upon it.

Ash, glanced down at his Z-Ring, exchanging his green Z-Crystal for a red one. "What do you say, Incineroar? Looks like we still got some gas in the tank." Ash said, holding up his Z-Ring to the Pokemon.

Bumping its massive hand against its trainer's fist, Incineroar stated: 'Let's finish him!' Performing the dark-type Z-move dance next, Ash exclaimed: "Let your ruthless aggression be more intense than Wela Volcano! And show him who the real Champ is!" Orange energy jumped from Ash's body into his Incineroar. Growing bulkier, Incineroar grinned before breaking into a sprint. Mewtwo stood, gazing at the opponent who charged in its direction. What it was unable to anticipate was the large orange wrestling ring made of Z-Power rising up from the earth beneath its feet.

"Use Malicious Moonsault!" Ash exclaimed. Incineroar slid underneath the bottom rope, charging forwards delivering many chops and jabs to its opponent, knocking it to the mat below. Breaking into a sprint, Incineroar leapt up onto one of the ring posts, and shot up into the sky in a blazing ball of fire. Reaching its maximum height, Incineroar performed many flips in the air, before slamming its body onto its grounded opponent, causing a major explosion in the center of the ring.

When the dust settled, Incineroar stood tall over the green Mewtwo with its arms raised high into the air, prompting cheers from the group of people. Ash stood frozen however, reading the Aura of the downed legendary, realizing the worst was yet to come. "It's using Recover!" Ash exclaimed, as the Legendary rose into the air while glowing a harsh, green light. The cheers subsided as Incineroar snarled, lunging at its opponent with another Throat Chop at the ready.

Before Incineroar could connect, the green Mewtwo encased itself in a rock-like substance and Mega Evolved on its own into its Mega Mewtwo X form, which was part fighting-type. The opposing Pokemon fired off a large Aura Sphere, which hit Incineroar and sent it flying straight into a boulder behind it. 12 Decidueyes pointing orange-tipped arrows rose out of the shadows and surrounded the Mewtwo. Before they could fire off a single shot, Mewtwo sent a Psychic pulse from it, causing 11 of the Decidueyes to dissipate. Mewtwo shot forward to the single Decidueye and grabbed its face in its palm, shooting off a shadow ball, knocking it out. In a matter of seconds, the two Pokemon who were Ash's only hope had been taken out.

'You have been defeated, Boy,' The Mewtwo said to the Aura Guardian in a voice that sounded different from any human he had heard before. 'Come and die with honor, and I will give your friends a much less painful death!'

Alexa pulled out a single Pokeball, before Ash restrained her wrist. "There's no fighting that thing, Lex."

"Ash, don't go over there!" His sister said. "We need you!... I need you!"

Ash paused for a moment, thinking about his options. None of his other Pokemon were around or in fighting condition to take on the Mewtwo. He could try taking it on himself to give his friends a chance of escaping, but who knows how much time that would buy him? Ash truly felt hopeless, before he sensed the presence of another Aura within the vicinity. An Aura he had known 11 years ago, even if it was before he could read it. Ash glanced around him, unable to see the owner of this Aura, who had come to his rescue.

'Glancing around for a way out?' The Mewtwo said, charging up a large shadow ball. 'For there is no escape for you!' Releasing the ball of purple energy from its hands, the attack made its way to the center of the field, before the blur of a Pokemon made its way onto the battlefield, slicing the attack clean in half, causing an explosion to go off between Ash and Alexa, and the enemy Mewtwo.

"What was that!" Alexa shouted. "Who's here now!?" Looking over at her brother, he gave no response, other than tears of joy. Glancing back onto the field, she saw the Water type starter of the Kalos region: Greninja. A Greninja that bore an uncanny resemblance to her brother, with a blade made out of water in hand.