Necrozma had regained his true form. He floated above the Alter of the Sunne, and then looked down on all of us. Many of us were cowering in fear, and admittedly I was, too. Dialga and Palkia were glaring at him. 

Necrozma glared back at them before turning to everyone else again and speaking, "It is best I don't waste my time here. It will only be an unneeded roadblock in my ambitions." Necrozma then flapped his four massive wings, and took off, soaring over us to a new destination. 

Palkia took note of this and then announced to us, "Necrozma's going northeast, to Melemele Island. The human population is far more dense there. Death and destruction will follow his arrival." 

Mew then announced, "I can take all of us there by Teleport. It'll drain a fair amount of energy, but it's necessary." She created a warphole that the rest of us went through before Mew went herself.

Soon everyone was here. I looked down and saw a large city district with a beach nearby, the flurescence emitted from the city contrasting with the dark night sky above.  A few people had started to look up at us, and before long there was a huge crowd staring in awe at us as we settled in above a few buildings. Although a few of them were fascinated by the mythicals like me, most of their attention was given to Dialga and Palkia. 

Now that we were here, Jirachi said, "Alright, this us the largest city in Alola, Hau'oli City. I suggest that everyone prepare for when Necrozma arrives. Do everything you can to prevent him for harming the civilians." At once the mythicals, including me, attempted to help evacuate everyone, but only about half of them seemed to get the message. No matter how much we screamed in their minds for them to flee, they wouldn't listen. A bunch of the residents were taking pictures of us, but as of now that was the least of our concerns.

Soon I saw a bright, yellow light streaking across the sky. It grew closer until it landed on one of the buildings in front of us. The yellow being that now stood there was instantly recognized by Marina, who said, "That's Tapu Koko, I knew he would come!" 

I turned to her and asked, "Do you know him?" 

Marina replied, "Everyone in Alola knows him! That's the guardian deity of Melemele Island." Soon, we then saw two more lights, one pink and one blue before they landed next to Tapu Koko. It shocked Marina. She then told me, "Tapu Lele and Tapu Fini are also here now... they never gather together unless their adversary is a huge threat..." 

"Then that means they must know how powerful Necrozma is," I finished. A red light yet came soon as well, which Marina identified as Tapu Bulu.

Soon Tapu Koko spoke to the other three, "Good, you're all here. We'll need all the help we can get to fight Necrozma." 

Tapu Bulu then turned to the two huge dragons behind them and asked, "Palkia, Dialga, are you aiding us in defeating Necrozma?" 

Palkia replied, "Yeah, we are. He's extremely powerful, even all six of us might not be enough to take him down." 

Tapu Lele then spoke for all of them, "We'll have to give it our all if we want even a chance of defeating him." 

A bright flash from across the ocean caught everyone's attention. At once every legend already knew it was Necrozma. He flew away from the dark horizon, making the water beneath him almost seem to glitter. At once he slowed down upon arriving at Heahea City. The civilians looked nervous. Dialga and Palkia stood their ground near evacuated space, ready to defend against Necrozma if he did anything funny. 

The Blinding One floated around for a short while observing the city, commenting, "It seems mankind has made many advancements since I was last here. Perhaps they have evolved in dignity as well." Dialga, Palkia, and the Tapus stared at each other. They were both very suspicious about this. 

"Regardless, it does not excuse them of their past crimes," Necrozma continued. 

"The human race is 3,000 years overdue for punishment."

Necrozma stopped moving across the road from us, then charged a large ball of pure light in his menacing jaws, throwing it at the Hau'oli shopping mall. A huge column of light shot out of the mall into the sky, causing the whole mall to blast apart and killing anyone that was inside. The residents of Heahea City were horrified, and just about all of them tried to clear out now. At this point Dialga and Palkia finally took action. Dialga charged a Roar of Time, taking in odd particles into him and then releasing it in a burst of incredible power. 

I actually had recieved a headache from the time distorting from the attack. In my blurry vision I could make out Necrozma taking the attack at full force. When the headache cleared it was shocking to find out that he had sponged up the attack like it was nothing. Just about everyone else felt the same way. Dialga himself was mortified at how his strongest attack could do so little to Necrozma. 

The Blinding One replied, "Good try, Dialga. But I have always been more powerful, you peasant." As I noticed a look of personal offense on Dialga's face, Necrozma set off a shock wave that quickly took the form of a dragon. It hit Dialga hard, sending him flying back. Necrozma fired a second Dragon Pulse at Palkia, and this one hit even harder, sending Palkia past Dialga and slamming into the buildings behind him. They both hovered into the air again, clearly very again. 

The Tapus then decided it was their turn, launching multicolored orbs at Necrozma, Nature's Madness according to Marina. Just before they hit, Necrozma started shining and thrust his left wing forward, and the orbs froze in place. The pattern on his head emitted blinding light, as the Nature's Madness were mirrored back to their senders, leaving them in pain. It seemed clear the six of them alone couldn't do anything. But before we could intervene, in the middle of the road, there was a dark splotch of pure black. Then another appeared, and another, and another.

Soon, a huge draconic figure started rising from the blotches. The pitch black his whole body was in began to take some yellow and red colors. He was Giratina, except his six wings had fused into a pair and he had three pairs of legs as well, among other differences. 

He had now stepped out onto the road and faced Necrozma, saying, "My old adversary... I have waited a long time for this moment." 

Necrozma replied, "This will merely end in your loss again. Do you really think you could defeat me this time?" The other mythicals and I were taken aback by that. What did Necrozma mean by "this time"? 

Giratina replied, "I wouldn't be so sure, Necrozma. Why don't you prove it?" 

Necrozma scoffed in response as he sent a Photon Geyser his way. Giratina countered with a Shadow Ball, and as the two attacks collided against each other and blasted apart, even Dialga and Palkia were surprised to see that the two attacks were roughly equal in power. 

Dialga and Palkia started approaching Giratina, who said, "You two, stay out of this. I advise you go somewhere else, or reality's fabric will bend, and none of us want that. Make sure the other legends here stay with you." 

They nodded, and Dialga told all of us, "Everyone, stay far back! No interferance for now, everyone!" We all listened to him and retreated, except for the Tapus. 

The huge shadow dragon glared at the foursome, until Tapu Fini then told him, "You might not like it, but please, Giratina, let us fight with you. It's our task to protect Alola, otherwise we wouldn't be very good guardians. This is our fight too." 

He answered with irritation, "Fine, you can battle with me if you want. We have a common enemy for now." Everyone looked at Necrozma himself, who was now unleashing his rage on the city, turning it all into ruins, and murdering the few unlucky civilians who happened to be in his path.

Soon, Giratina transformed into the serpentine form I recognized from our little visit in the Distortion World, his Origin forme, and tackled Necrozma with great force, who immediately fought back. The Tapus then jumped in themselves and the battle begun. Even withn a minute, they all fought viciously. The Tapus would launch a barrage of attacks at Necrozma, but they didn't seem to be harming Necrozma much. Giratina and Necrozma, however, were on a whole other level, clashing with unparalleled ferocity. This was not just a simple battle; the two dragons looked like they were trying to kill each other. This didn't make sense. Giratina tried to murder me a week ago. Why is he now protecting us?

I didn't get the time to ask anyone. A Photon Geyser narrowly missed me and looking back I could clearly see it was intended for Giratina. Regardless, it wasn't safe here. I flew over to everyone and said, "The fight's getting out of hand. We need to get out of here, now." 

They considered it and then Jirachi announced, "As much as I hate to say it, Celebi's right. We should go to the highest location in Melemele to watch it safely. Where would that be?" 

Marina replied, "The cliffs on Route 3 are pretty high. Why don't we go there?" Everyone agreed, and when I picked up Marina she lit up the ends of her antennae as a visual source. 

As soon as we arrived we could see the flashes of bright light colliding and traveling around between short intervals. Specks of yellow, pink, red and blue darted around as well. However, the flashes seemed to slowly grow more powerful. 

Marina was confused, asking me, "Why do you think Giratina is helping us? He tried to kill us the last time we met him." 

"I've been wondering about that too," I replied. "Maybe Dialga and Palkia know?" 

Marina responded, "If anyone knows, it would be those two." 

We went over to the two and I asked them, "Isn't Giratina evil? Why is he fighting Necrozma?" 

Dialga answered, "Every one of us legends has a clear role for us to exist. Even Giratina wasn't created for no reason; he monitors stability and antimatter, and he also keeps our world's gravity balanced." 

Palkia added, "That's why we had to move away from him before when he shifted to his Origin form. He exerts so much power that he can distort gravity and float, and that could dangerously alter time and space if we're too close." 

Marina questioned, "Okay, that may be interesting, but it still doesn't explain why he's fighting for us." 

Palkia responded, "Giratina may be evil, but he's not insane. If he was given the chance, he would likely take over the world, exterminate all humans, and likely many pokemon as well. However, he also doesn't want the world itself harmed in any way. If Giratina finds someone trying to mess with reality to destroy our planet, he'd be very, very angry." 

Dialga continued, "Necrozma emits so much light energy that it can alter dimensional functions, which could've provoked Giratina's attack. However, they also both mentioned something about an ancient rivalry... that, I have no answer for."

To be honest, neither me nor Marina really understood what the dimension dragons were babbling on about. What we did catch was that Giratina is sociopathic, but not mental. Clearly he thinks Necrozma is so much of a threat he must fight against him. But it didn't make sense. Giratina and Necrozma being rivals? That couldn't be right. It was Arceus who banished Giratina...

It was at this point I was done with not knowing. I needed answers to all this. And I figured the best way to realize the truths I was missing would be to find the Ultranecrozium Z. Perhaps the knowledge the artifact gave would help us defeat Necrozma. 

So I decided to announce, "Everyone, I need to find out how to stop Necrozma. We can't stop him with anything we have now, but the secret to stopping him might be locked away in the past." 

A lot of legends gathered in intrigue, with Marshadow replying, "Well, what do you suppose could stop him? I doubt much of anything can cease his destruction if he can fight off five legends, one of which is extremely powerful." 

I knew that I might anger some of them if I immediately revealed what I wanted, so I edged into it, "Remember how Lunala said Necrozma was defeated 3,000 years ago? She said the last remaining piece of him was the Ultranecrozium Z. Perhaps if I brought it back to the present, it could help us defeat Necrozma once and for all."

My statement got mixed reactions. Most of them whispered between themselves wondering that was true. Jirachi yelled, "Are you crazy, Celebi? That's his final power source! If he finds it, we can say goodbye to Alola!" 

Dialga jutted in, "Jirachi's right. Even if the Ultranecrozium Z does give us valuable information, we still won't have the firepower to actually take down Necrozma." 

I was very nervous now, but I knew we had to at least make a effort to defeat Necrozma. We couldn't just leave the Tapus and Giratina to delay him. Knowing how controversial my actions were, I replied, "I'm sorry, but I have to. I can still see just how Necrozma was defeated, and that'll help us know how to." 

"Celebi, no! You'll doom us all!" Dialga screamed. It was honestly terrifying, but all of this surrounding Necrozma seemed extremely mysterious, and I wanted answers. I focused my mind, ignoring the ranting of many around me, as I was shrouded in an iridiscent aura and willed myself to go back 3,000 years in time. As I disappeared, I noticed blue light taking over the rainbow. At once I knew it was Dialga trying to delay me. So I willed myself more, and remained in complete concentration, until somehow, I overpowered Dialga's distortion and traveled back 3,000 years.

Soon, I opened my eyes to see a familiar light dragon down below. It was Necrozma, in his true form, floating above what I perceived to be the outskirts of an ancient civilization. He seemed to be... in pain. Something was wrong, very wrong. It didn't help matters when Necrozma said to those below him, "I implore you all, please reconsider your choices. I would rather not have any of you be harme- AGGGTH!" Necrozma roared in pain. His light body seemed to flicker and falter for a few seconds, and his crystals seemed to briefly lose their glow as well. 

This was not the Necrozma I knew. How could these ancient people be defeating him? Why did he act so different back then? I flew closer to get a better look, and that's when I made a realization. The people of Alola, they were using Z-moves. Of course, the Z-moves themselves weren't actually hurting Necrozma, but the light they drained... that was what was doing the damage.  As they continued attacking, Necrozma screeched again. More of the light looked to be disappating. He asked again, "Please, stop! Nothing good will come of this! Reconsider your choices!" The people just kept attacking, however. 

Only now, the light seemed to be sucked out him completely. He tried to scream, but no sound came out. Instead, his body of light vanished into nothing, the crystals blackened and lost their luster, and the final remains of Necrozma fell from the sky and impacted the remote world below. The ancient people then looked at each other and ran to the village with their pokemon next to them. 

Panicked and worried, I flew over to where he once hovered looked down to see the pieces reassembled themselves into a frankly distorted shape. It was the first, crippled form of Necrozma I've seen. I looked around and saw the pieces that made up his head were still floating. Strange... soon, they started glowing, and merging together, released a flash of light, making me flinch. After my vision recovered, there was now a pure white Z-crystal that looked like it had two smaller Z-crystals attached to it. In the middle was a star-shaped pattern.

Then it stopped glowing as much and started to plummet to the ground. Panicked, I dove down to try to catch the crystal and soon managed to grab it. There was incredible power emanating from this Z-crystal. I knew what it was as soon as I gazed upon it. 

The Ultranecrozium Z.