Various explosions could be seen rocking the area as Ziden was leaping back to avoid the shots from Vile's shoulder cannon.

" Ziden! What is that form you just took!?" Romani was severely caught off guard the transformation he took as Ziden soon dusts off his armor.

" This, is the culmination of over 40 years of long battles against the forces of evil that plague mankind. This, is a Kamen Rider. Kamen Rider Avenger!" Ziden soon pulls out a card and soon slides it into this Gauntlet and soon smiles.

"Card Set: Salamander Saber!" Ziden soon holds out his hand as fire soon sprayed out and formed a blade, a curved blade with a dragon styled hilt as he quickly cleaves three of his bullets in half.

" Tch! I dunno what that darn form is, but its getting taken out! You're in my way between a battle with X and I will not let some human be in my way!" The machine was quick to aim and charge that shoulder mounted cannon at Ziden as he got ready to battle.

Vs Vile ( Megaman Maverick Hunter X)

A quick swing of his blade before Ziden soon used the flat of the blade to block a sudden slide punch from Vile, seeing that cannon aiming point blank at his face and soon seeing it glow, quickly ducking and slicing downwards along his chest, causing sparks to fly out as the laser from the cannon blasts out and strikes the ceiling.

The laser blasted clean through it and even melted the metals as Ziden was using his blade to block the shots from his cannon to make sure he was not blasted apart. " Tch, annoying human!" Vile was quick to leap high into the air and dropping down bombs onto the floor, soon creating blasts of electricity to shoot out and take ball shapes, chase down Ziden.

The male was not about to get caught by them, making sure to slide under them and making sure to grab Vile before launching him into one, causing the lightning to disperse and soon keep him stunned in midair. Ziden leapt right after him and lands a kick right on his chest to launch him off of the balls before gripping his blade with two hands, fire dancing along it.

"Burning Slash!" A powerful two hit strike, twice across the chest and causing a blast of fire to explode out from the machine causing him roll along the ground, quick to throw out a series of grenades, causing them to explode with spirling fire Pillars to take him down. " Really?" Ziden was quick to slice them down and soon getting blasted right in the chest with a giant fist. " Gack!" and soon felt himself smashing right into a wall, caving in the metal.

" Whoa! Ziden, are you alright?!" Romani looked concerned as Mash was watching this carefully, along with the white haired woman.

" Oh he'll be fine the baby, if anything, we're the ones in danger here!" Yukari was trying to figure out this machine and trying to disarm it, with Yuyuko looking at the flashing buttons before her as she thinks for a moment before touching a random button.

" Countdown has been accelerated to 5 minutes until weapon firing."

A strong stare came from Yukari as Yuyuko sheepishly looked away. " S-sorry!"

" Goddammit, the most i know about this kinda stuff is tvs! I got an idea!" Yukari was quick to vanish into a gap while the sounds of battle rang out down below.

Elsewhere...

" Final Spark!" The massive beam of rainbow light slammed right into a Hyper Beam from the Mega Rayquaza, the clash causing massive explosions in the sky while Sanae stares down Lysandre as Ash was being electrocuted by those orbs holding him in place.

" This is all done for the sake of the world, humanity continues to grow and fester, destroying resources and even land for the sake of their greed. Their hunger, but I will fix that, with the destruction of humanity save a few survivors, this world shall flourish and no longer break apart and rot." Lysandre gripped his hand as Sanae looked down before throwing a watery snake at Ash, Pikachu and Greninja's binds, breaking them free and causing them to land on the roof.

" you can't...you can't just kill everyone for that!" Ash wheezed out between breathes, the boy soon standing tall next to his Pokemon. " I don't really understand all this major business stuff but I know people wouldn't want to killed off for improving our lives!" Ash stood tall as Lysandre shook his head.

" I expected you to not understand at all, Alain however, he does understand my plight, humanity is a true sin that must be wiped clean and started over." Alain simply looked away, his Charizard seeming neutral to this entirely.

"..." He says nothing for now before seeing Sanae glaring at him and soon at Lysandre.

" I might be an outsider to this world and meddling in its affairs but, I am not gonna stand by while another Psycho tries to bring the world down for their silly goal!" Sanae soon points at Lysandre dynamically as he softly looks at the Pokeball in his hands.

" I see, an outsider to this world wishes to oppose my grand plan." Lysandre soon sees Mavis, one of the elite Four opposing him as she stands next to Sanae. " and even you as well."

" Lysandre, this is utter madness to do this, do not cause the death of all these people-!"

" Enough!" Lysandre soon throws out his Pokemon, the massive Gyrados and soon pulls out a odd harness that began glowing. " For us to settle this, will be settled with a Pokemon battle!" The odd stone on the harness soon erupted in colors as the Gyrados began to glow and soon encased in that familiar orb, soon emerging fatter, stubbeir but more intimidating as its Mega Aura rang out over the top of the tower.

" I See, then we accept your challenge! This will be a battle to save Kalos!" Sanae was quick to leap into action as down below, it was getting chaotic.

Decade was seen rolling along the ground and dodging a stab from General Shadow and watching Fourze leaping in and kicking him right chest and sending the General rolling before summoning a bunch of Cards and launching them at the group, only for Takeru to use his blades to slice down the cards and knock them to the floor, causing many sparks to ring out before standing tall.

" You accursed Riders! You will not stop our plans here!" The General was quick to leap into the fray and stabbing right at Takeru's chest, causing sparks to ring out and knock him back, the male continuing his poke assault before getting sliced hard against the chest by Kabuto.

" Unfortunately for you, we are, so decrees the Man who will Surpass the Road to Heaven." KAbuto could be seen holding up his hand as a highly decorative beetle appeared in his hand before sliding it down onto his belt. " Hyper Cast off."

" Hyper Cast off!" Kabuto's armor began to open up as a bright yellow streak down the middle with segments of his armor opening up. This was Hyper Kabuto,the Final Form which Takeru was seeing occur before him.

"Oh, so we're gonna go Final Form. Fine by me."Decade soon holds up an odd rectangle and slides a card in and began to press random Symbols upon it as voices rung out.

" Kuuga! Agito! Ryuki! Faiz! Blade! Hibiki! Kabuto! Den-O! Kiva! Final Form Ride"

He soon replaces his driver with the device as a large card soon slams into his helmet and soon creating a thicker chest with 8 cards of the past riders forming on his chest, his head now having a Decade on it.

" Then, lets finish this guy off, buddies!" Fourze was seen pulling out a large switch and soon inserting it into his driver and soon hits the button on it.

" Cosmic on!" Fourze reached his hand up as a ring formed around him, blasting out wind as blue lights shined around and formed a whole new suit for him that was bright blue and soon pulled out a rocket looking sword, the male leaping forward and soon slashing Shadow with the blue sword, causing him to stagger.

" Lets finish this and get to that Site.." Tsukasa stated before music started playing as Clement was in the back, messing with a machine that was causing the Zygarde down below.

Lord of Speed ( Rider Chips)

A battle was now shifting to a losing one as Takeru witnessed these forms, forms that exuded power beyond power for a Rider. The male soon watching cards being launched and knocked out of the air by blinding speeds before Shadow was struck across the face with a series of punches.

" Geh! Accursed Riders!" Shadow was was not having a fun time with the duo, the hits causing him to stagger back before trying to stab Kabuto in the chest, only for Decade to intercept with a series of shots to the chest.

" The battle ends her, Shadow! These Riders are gonna send you back to where you came!"

Shadow was now staggering back as Takeru watched as their final attacks began to come together as they all began to lift into the air. " This...isn't right! We are the chosen conquerors of this world!" Soon the three feet soon came down and slammed into his chest, a rainbow colored barrage of lights coming from his chest as he flies back into a wall and out of it, explosions rocking his body before crashing down into the streets, erupting in a massive explosion, the machine ceasing its control over Zygarde as the tiny pokemon looks up at the freed giant, soon shrinking down to match the other.

" I see that you are finally freed. Come, we have to go, the humans will soon face a beast of unholy proportions." The other Zygarde spoke as Clement and his sister soon ran out, soon feeling the massive rumble of the earth.

Up above, explosions rocked the Mega Gyarados as Sanae soon snapped her fingers. "Lets end this with an Aura Sphere!" The blue orb formed in her Pokemon's mouth as it soon smashed into the Gyrados, causing it to roar and soon fall over, a flash of light as it soon returns to normal.

" The battle may have been lost but the back up plan shall go on without any issue and flow forward." Lysandre soon shakes his head and recalls his pokemon, soon touching an item on his wrist and soon vanishing into a blast of holy light, soon seeing a helicopter flying up to them.

" Huh, Professor Sycamore!" Indeed, Ash was right, inside was Sycamore and the Champion of Hoenn, Steven Stone.

" Ash, there is no time! Something major is happening and we have to get going!" Ash swallowed hard as he and his Pokemon leapt inside as Mavis soon leapt onto her Mega Houndoom and took off to where she needed to be, she knew what came next. " You too Sanae, we are gonna need all hands on deck, the city will be fine, Rayquaza will be stopped by the trainers and heroes here!" Sanae nods before leaping into the ride as well. The copter soon taking off to the large valley in the distance.

Elsewhere...

Ziden was seen flying across the air and soon catching a giant fist into the face, smashing right down into the earth before fires were seen slicing through and blasting the arm of Vile with a powerful blast. " Dam,n you! That Armor is beyond annoying!"

Ziden was seen rolling along the ground with a sigh and soon pulling out a brown coin and soon slammed it into his driver. " My turn is up? Then let us see how you can rumble with this man!"

" Coin Set! Gnome!"A giant massive head of stone with sharp spires for teeth soon appeared behind him and chomped down on him. " Break the World! Earth Shattering Justice!" That familiar knight armor soon forms around him with rock slamming down into it and soon summoning the gnome axe into his hand and soon slamming it down the chest of Vile's Ride Armor and causing him to skid back.

" Let the rocking flow of the Earth crush you!" Ziden was quick to leap right at Vile as Da Vinci was quickly tapping away at the console.

" I see, what a unique machine, its using the life energy of a powerful creature and soon weaponizing that force with an utmost goal of utter destruction, but if I reverse and reharmonize the flow of the energy back to the Creature, it should not only stop the machine but also possibly revitalize the creature back to normal." Yuyuko looked confused at her words before Da Vinci gives her a small smile. " It means, I'm gonna flip the energy around and save a life if possible. To think I would be outside of Chaldea right now on an alien world, how fascinating!"

Well, Yuyuko got it now as the machine began to spark and break, various explosions came from the machine and began to glow bright, the dead tree within began to glow with brilliant colors as ziden sliced down along the body of the Ride Armor as Yuyuko floated off after spotting something and phasing through a wall.

The Ride Armor was now leaking out oils and fluids as the rider was now pulling out a card and sliding it into the Gauntlet. " Accursed human! This ain't over at all!"

" Finishing Move! Ready?" A large pair of orange, crystalline hands soon shot up from the ground and soon slammed into the body of Vile, encasing him in an orange crystal as he was struggling within and Ziden's axe was glowing orange as he leapt sky high.

" Lets go! Mountain Splitting Impact!" A orange glow surrounded his weapon as it soon comes down with a downward slash and takes out the crystal with a single downwards stroke and soon follows up with a powerful horizontal slash. " TAKE THIS! SEIYAAAA!" That powerful slash let Ziden dash right through the chest of Vile and his mecha as sparks began to heavily spray out from both of them.

" Impossible! I just got back dammit! I cannot have been beaten back by lowly humans before I even destroyed X!" The sparks that came out of him intensified and exploded out of him before he fell forward and hit that ground with a massive explosion and soon watched as parts of the machine rain down around him.

" A-Amazing, so this is what a Rider is like? The protectors of Japan?" Ziden Simply nods as he detransforms, rocks falling off of him as he soon witnesses the glass of the machine exploding out as lights were raining out, Yukari, Da Vinci and soon Yuyuko came out and float down next to him as the glowing lights came out of the machine. " Z-ziden! The machine has stopped its massive output, but something is putting out even more energy beyond that elevator to your right!"

They were not paying attention as the Pokemon before them unleashed its glorious lights and soon Ziden felt any wounds on him gone in an instant and even Yuyuko looked like she was physical right now before going back to her Ghostly Charms.

"W-we found it, the way to cleanse our home." Yukari stated before the ground above them began to shake, the Obelisk now moving above them.

Aboveground...

The massive roots of the Obelisk seemed to be exploding and being attacked by the Gym LEader and their pokemon. Ash and Sanae were running along the roots of the body. "We have to keep moving! Sycamore said if we remove the core of Energy, we can stop this thing from Reaching the Sundial!" Ash said as his Greninja was quick on the draw and slicing through any vine that came their way

" I know, don't worry! WE're gonna push through and beat this thing down!
Sanae said as her Togekiss was seen aiming at the rock before them.

Ash Greninja Theme ( Pokemon X Y and Z the Animation)

Sanae was seen pulling out a spell card and leaping into the air. " Togekiss! Aura Sphere and keep the volley going!" Her pokemon followed her orders well and began to rapid fire the Aura Sphere while her card burned with magic energy. " PRayer! Charm of Good Commerce!" From behind her came a storm of charms and soon fired right into the rocks where the Aura Spheres were hitting

" Pikachu! Electro Ball! Greninja! WAter Shuriken!" A massive yellow ball of lightning came from his partner's tail and soon Greninja grabbed the massive shuriken on its back and soon launched it at the spot, soon piercing through it. " There! We can get in now!" Ash said as soon the vines got alot more mad and soon came down on them like lightning.

Steven's Mega Metagross wasted no time and fired a Flash cannon to destroy them as Ash and Sanae leapt up into the hole and saw the myriad of orange Crystals inside and soon the glowing green core, supposed made from the energy of a Chespin that was exposed to Mega Energy.

" There it is, Ash, watch my back!" Sanae soon took flight as he watches carefully, the Crystals inside were quick to protect its core and try to slam into her, using her basic shots to blast apart crystals and soon fly to the core, Pikachu's thunderbolt was flying out all around and destroying anything that can harm her as her hand grabbed the core and started to burn, causing her to scream as she yanks it out and quickly flies away, now landing on the ground and quickly bouncing it between her hands before using her sleeves imbued with water to hold it in her hands while walking with it and exits the beast. Ash soon running out with her while landing on the ground. " Thank Goodness!"

Ash and Sanae soon lands on the ground while looking at the Obelisk while panting, that run was way7 too long, even with the Gym Leaders aiding them as they ran over to them.

" Do you see? Humans have vastly changed since our time, they have learned to Coexist and work with their pokemon!" The Right eyed Zygarde looked to its other half and soon nods.

" Perhaps...you are right."

But this battle was not over yet, while the Obelisk stopped, it went right to moving once more to the shock of everyone. " Impossible! The Core was removed!" Steven watched the Obelisk continue its march as Lysandre appeared atop it.

" Foolishness, I will never allow for my creation to be destroyed, it will fix the issues this world has and repair what humanity has done, none shall stop this plan. None!" Their hopes were gone, they and their pokemon were tired the Obelisk continued their march, the Zygardes soon leaving Bonnie's hands.

" Squishy?" Bonnie asked while watching the two Pokemon close their eyes as the sound of an explosion came from the heavens.

" Leave the rest of this to us! This Battle shall be settled by the ones whose energies caused this!" The Zygarde's spoke in unison as the massive green flash of light came from them as long green streams soon flowed out and collided with them as the pokemon began to massively transform into a massive humanoid. Its eyes glowing bright as it towered over the Obelisk. " This battle shall end now! You will not destroy this world for your twisted and unneeded aid!" The massive pokemon was Zygarde Complete 100%

" So you have shown your true form, it is far too late, this plan shall not fail!" The Obelisk was seen releasing a ton of energy to fire right at the creation, before Zygarde soon flies through the air and avoids all of it while everyone watches, the Pokemon soon firing a massive beam that formed into a dragon into the Obelisk, blasting large chunks of it into the ground as i could barely move at that point, meanwhile, far above them was a meteor being trailed by 2 massive beams and a massive blade of green crashing into it.

" ZYGARDE, END IT NOW!"Ash yelled out as the Pokemon unleashed its final move, the Signature move of special Pokemon as it fired a beam out as it slashed the Earth into a Z Mark as Lysandre sighs.

" My plan, it seems to have fai-" He did not get a time to finish as he hears screaming from above, Sigma was being blasted down into Lysandre, ruining his final words before the two explosions and combined and watched the flames explode sky high as Zygarde watches the fires burn and the Mega Energy Flow out.

Ziden and Yukari were seen racing down the long path that the Obelisk traveled on his bike and soon skids to a stop near the Group, a portal opening next to them showing Tsukasa and the other Riders soon following.

" Holy heck, we did it! We saved Kalos!" Sanae Cheered as the ground rumbled a bit as Darkness was seen exploding out of the fire and dousing it in its shadows as something walked out of it, caked in Stone and green energy came a towering creature, that ziden and Crew recognized.

" SIGMAAAAAA!" And from the heavens did Zero come, slamming down into him with that Icy blade, only for it to be smashed and soon had Zero grabbed by the neck and slammed down into the earth with no mercy and thrown into the earth with several unholy punches. The sound coming from Zero stops as he soon stands back up with X and Utsuho landing near the group.

" To have died and be reborn so fast...this is the power of Oscura...I see. I see!" Sigma was now a shell of his former self, his white armor gone and he was now covered to head to toe in the rocks of the Obelisk while his chest, eyes and horn tips were colored after the flowing lights of the Mega Energy flowing through him, with streaks of darkness coming through it, not to mention that massive sword with him, the Symbol of Mega Evolution was at its hilt, green and black lights coming from it. " This form...was like the form i took upon the Moon the last we faced, X. This time, I am far stronger than I was then!" A flex of his body and soon darkness soared from him as the figure of a being in that Darkness was seen, one Ziden knew too well.

" Oscura...they really are his Scions huh." Ziden said while soon going to crack his knuckles. " Yukari, get that Deer thing to the Ship and have it wait there, we're gonna stop Sigma and save this world!" Ziden said as Ash stood by him with his Pokemon.

" We're helping too." Ash declared as his Pokemon stood tall and soon Ziden's Tyranitar soon stood next to him. " I see. then lets do this! Sigma! We are sending you back where you belong!"

The final battle was set and it seemed that it was time for this battle to save Kalos.

Trivia:

Final Form of a Rider is their most strongest form, tends to also be the most Flashy too

2. Vile came back during Project X Zone, where is when his first revival occured

3. The Obelisk is a very cool concept and i do recommend checking out the episode it appears in.

Author's note, this was supposed to have been uploaded a month ago but due to a sickness, it was delayed and reworked, however during the rework, i suffered a work related accident that hurt my head and shoulder, so i now have a bit of a mini concussion which slowly comes and fades with pain, i do apologize on keeping you guys waiting on a story so, imma upload this and get the next chap out as fast I can. Also, Fate Grand Order is addictive. I promise the next chapter will be here within a week