AN: Sorry this took so long to come out readers. Coronavirus, online school and all that jazz just had me occupied for a good while. Hopefully you've been keeping yourselves entertained in the midst of this quarantine; I've gotten into Star Wars: The Clone Wars, Scooby-Doo Mystery Incorporated, Cardcaptor Sakura, Magi: The Labyrinth of Magic among others. Anyways, let's get back, at long last, to the Xavier Institute for Higher Learning of Gifted Youngsters (or just Xavier Institute or XIHLGY since that name might be a bit too long for some) and see how the Crystal Gems and their new allies can get out of this one!

Steven Universe: The Fantastic Mutants

Chapter 3: Enter the Brotherhood

A few hours prior to their invasion of Professor Xavier's school, the Brotherhood of Mutants sat around a table examining the exploits of the Crystal Gems to get a good idea of what they'll be getting into. "Don't ya think we're in over our heads?" Juggernaut asked his fellow mutants while watching video footage of Lapis stealing the ocean. "I mean, one of them can literally use 75% of the planet to kill us all!"

"The blue one may have the strongest power, but she is also rather emotionally fragile." Black Tom remarked. "In fact, all of them are pretty unstable once you think about it. Insecure, dependent, obsessed, haughty, cowardly, hotheaded..."

"Quit with the psychology stuff Tommy!" Pyro exclaimed out of boredom. "What I wanna know is how could they brainwash three world-destroying monarchs so easily? Could the same happen to us too?!"

"Well, the boss maybe." Sabretooth answered. "Speaking of which, where is he?"

However when Creed wasn't looking, the master of magnetism was standing behind him with Mystique at his side. "Lemme guess, he's standing right behind me."

"How could you guess? Do you have psychic abilities like Xavier?" Mystique snarked as she sat down next to the clawed mutant. "I've been discussing plans with Erik for the past few minutes, plans on how to infiltrate these Gems. He chose the water-controller as the one I should masquerade as since it would require that I retain my usual skin color."

"He's got a good point, but why are we hunting these down in particular?" Avalanche wondered. "Is it because of how celebrated they became for allying with the Avengers?"

"Not quite everyone." Magneto revealed. "Our current ally Doctor Doom wants the child's gemstone for the purpose of creating his own army of half-Gem warriors. And taking care of them will be so fulfilling for me after Rose had left me all those years ago."

In the present day, the Brotherhood had begun their assault on the Crystal Gems, with their archenemies the X-Men caught in the crossfire and the Fantastic Four as well. The mansion was left damaged in their arrival and the Brotherhood now has the heroes surrounded.

"Now my friends, are we going to make peace by handing the child to me or must we resort to drastic measures?" Magneto purred threateningly, holding out his hand and expecting someone to shake it.

"Like we'll ever let you have Steven!" Garnet stated. "Just a few weeks ago, he was nearly captured in a situation similar to this one, and we refuse to let it happen again."

"So when I want to do what's right, you try to fight back." Erik pointed out. "Yet when those three Diamonds plotted to destroy Earth, you let them off scot-free simply because they were mourning a bratty child that was no better than them? The hypocrisy is quite strong here!"

"Can we just cut the blabbing about our morality and fight already?!" Amethyst complained while wriggling free from Black Tom's vines and pouncing on Toad, tying his tongue around his eyes to blind him. "Why are you always targeting me?!"

With that, the battle properly began. The Crystal Gems charged at the Brotherhood of Mutants with the X-Men and Fantastic Four by their side, tearing up the mansion even more.

During the chaos, Morph snuck around the battlefield in the guise of Garnet and tackled Sabretooth from behind, sitting on top of both his arms. "You little shit, get offa me!" Victor exclaimed in agony while Morph then took the form of Groucho Marx. "I'd have you cry uncle, but you don't really have one as far as I know." He quipped while pretending to hold a big cigar.

Meanwhile Steven & Connie had formed into Stevonnie to gain a better advantage over Magneto, but he used psionic shields against their sword. "Gem fusion! I remember that quite well!" the master of magnetism recalled. "Garnet and Amethyst fused much like you to tear Auschwitz apart."

"Auschwitz?! You mean the Nazi concentration camp?" Stevonnie asked. "You must've been one of the Jews locked up there, right?"

"Indeed, me and my parents as well." Erik answered. "But alas, I wasn't one of the lucky ones."

It was October 7, 1944, towards the end of World War II when Erik's mutant powers awakened. When his mother was heartlessly shot dead by the scientist Klaus Schmidt, Erik promptly went berserk with a loud cry of "NEIN!" followed by manipulating every metallic object in the room, even crushing a pair of army helmets and the heads of the Nazis wearing them.

Klaus was excited at Erik's potential, but his joy turned to fear when a loud crash was heard before a massive purple flail burst through the roof of his office. "Mein gott." The mutant ally of the Third Reich muttered in awe of Sugilite. "Hey small fry!" the brutish fusion grinned while grabbing Schmidt by the collar with two large fingers. "Why don't you try picking on someone your own warped fascist government?!"

"Please let me go!" Klaus begged for mercy. With a toothy smirk, Sugilite gave her word and dropped the man back through the hole made in his roof, landing Klaus on his desk and making him too injured to get up. "Puny Nazi." Sugilite sneered before separating into Garnet and Amethyst.

"Bitte, hilf mir." The boy who would become Magneto croaked while crawling out from underneath the rubble, mildly injured but thankfully not comatose. "Bunte damen, hilf!"

Unfortunately, his voice was too hoarse for anyone around to hear. Not even the Nazis carrying away the bodies of his mother and Klaus were able to pay attention to the young mutant. "Is anyone else in here?" the voice of Rose Quartz called out as she stepped into the ruined office. However, she was able to find a certain young man pinned under pieces of ceiling. "Are you okay young man?"

Still hoarse, Erik was unable to give his name to the Gem. "Hallo, mein namen ist Rosenquartz." Rose introduced herself in some sloppy German. "Kannst du mich verstehen?"

"Rose!" the commanding tone of Captain America distracted her for a bit. "You have to come with me, they're bringing reinforcements from HYDRA!" he urged the Crystal Gem leader. With a small gasp, Rose turned back to Erik with some comforting words. "Don't worry little one." She assured him in English. "I'll be back for you soon."

But unfortunately for Erik, she never did.

"So you're hunting us down partially because Rose forgot about you?" Stevonnie asked. "Honestly, I'm not really surprised."

"I remember what happened that day!" Pearl exclaimed. "Rose couldn't come back for you because she was poofed during the battle and we had to retreat. I am truly sorry we were unable to make do on her promise."

"Sorry just won't cut it!" Magneto boomed, pinning Pearl to a wall with a steel beam using his powers. "And no matter how much she tried to make amends when we met again, I still never forgot."

Nearly twenty years later in 1963, the Crystal Gems were touring the city on a sunny day when they found a large group of people gathered before a stage, where a man made a speech. "What are those guys doing?" Amethyst asked her fellow Crystal Gems. "I'm not sure, but I believe we should get a better look." Garnet answered.

As the Crystal Gems blended into the rather blasé crowd, the man continued speaking. "Despite the fact that you lauded such beings as the late Captain America, you also hypocritically look down upon mutants for possessing similar abilities."

"Uh actually sir," a young news reporter with a fake toothbrush mustache spoke up. "There is a clear difference. Captain America was given his powers by science to help win the war. Mutants on the other hand were born with their powers that could go out of control if pushed too far."

"Did anyone ask for your opinion boy?" the man boomed as he glared at the reporter. "Please don't take it out on me sir, I'm just a young reporter!" the newsboy nervously squeaked and then high-tailed it out of there. "But thanks for the story menace!"

"Hmph, children." The speaker rolled his eyes before returning to his speech, or he would've had he not found a familiar face joining his audience. "Wait, I remember you!" he shouted. Using his magnetic abilities, he pushed the spectators away by forming a path straight to Rose using the steel fence that once separated them. "Rose Quartz. How have you been coping with the captain's demise?"

"I'm sorry, do I know you?" Rose asked the mutant. "Of course you'd forget about me." He replied. "I am known as Magneto, the master of magnetism! But I'm sure you'd at least remember me calling myself Erik."

"Oh my goodness, Erik?!" Rose exclaimed. "I am so sorry I didn't come back to you like I promised! There was HYDRA coming for us at Auschwitz, I just didn't have time and-"

"I believe that's enough!" Magneto roared before he proceeded to use the fences against Rose. "You have forgotten me at the camp, and now I shall make sure everyone forgets you!" He tossed the fences at the Gem, but Garnet & Pearl quickly deflected them. "Stay away from her!" Pearl called. "Amethyst, get everyone out of here while we take this one on!"

Amethyst gave a comical salute before she rounded up all the human spectators with her whip and dragged them to safety. "I see how it is." Magneto boomed. "You are just like all of them."

"No, you don't understand Magneto!" Garnet stated. "We've actually met and fought alongside a few mutants before! There was this Canadian one during the war, and we even met En Sabah Nur as well! The Crystal Gems value all life on Earth, whether they be ordinary humans or otherwise!"

"You can try to rope yourself into my good graces all you want Gems!" Erik growled. "Because nothing can ever change the past!"

"That fateful battle was how we first met Xavier. He had an older team of X-Men that saved us from him." Amethyst recalled. "Speaking of which, where could they be now?"

"Wrong time, wrong place!" Sunspot exclaimed while he fired a blast of solar energy at Juggernaut, who was unfazed. "Could this get any worse today?!"

"As a matter of fact, it can." Mystique replied sharply, snapping her fingers to summon a pair of massive blue and purple robots that towered over pretty much everyone. "Pink gem detected, pink gem detected!" the machines noted in unison. "Bring boy to Doom immediately!"

"Sentinels?!" Jean exclaimed. "And it seems this time, they've been modified to hunt him down!" Emma replied as the Sentinels held out their hands to trap Steven in a forcefield. "Guys, a little help?" he called out from inside his prison. "I can't seem to get out!"

"STEVEN!" the Crystal Gems screamed while the Sentinels slowly took off into the sky with the boy in tow. "Don't worry Steven, I'll save you!" Kitty exclaimed. "Storm, give me a boost!"

"You got it!" Storm replied, grabbing the younger mutant by the waist and lifting her up high with her flight abilities. When she was let go, Kitty leaped at the Sentinels and used her phasing powers to pass through the forcefield to rescue Steven. "Don't worry little guy, I got you!"

"Thanks Kitty, but I think we might be too late." Steven thanked sorrowfully, making his new friend look up to discover that the Sentinels were headed for a large airship above them. "Aw crud." Kitty smacked her face in irritation. "Guess I walked into that one."

"Now they got Kitty too!" Scott shouted. "Yeah, I think we got the picture!" Lapis said. "Can't any of you fly up and save them?!" Morph suggested. "You seem to love ignoring obvious solutions!"

Lapis rocketed into the air as she was joined by Angel, Storm, Firestar and Human Torch with intents to rescue Steven & Kitty, but unfortunately they were quickly shot down by the Sentinels, still slowly making their way inside the Brotherhood's vessel and leaving the other heroes behind.

"Let this be a lesson to all of you Crystal Gems." Magneto declared. "You may think just saying sorry will instantly make everything better, but time will never make people forget." He surrounded his Brotherhood in his forcefield and lifted them all up to his ship. When the villains got inside, the ship sped away from the destroyed mansion.

"I can't believe we lost him, just like that." Pearl muttered while on the verge of tears. However, Reed was there to put a comforting rubber hand on her shoulder. "Don't fret, I think I might know where they're heading." Mister Fantastic declared. "They're working with one of our greatest enemies known as Doctor Doom, which means their next destination will be his kingdom of Latveria."

"Latveria? I've read about that place." Connie replied. "Very good that you know about this place Fraulein Connie." Colossus complimented her. "But still, the combined forces of Doom and Magneto might need more than just our three teams here."

"I think our first step would be calling the Avengers." Peridot suggested. "But they agreed to let us solve our own problems unless it was absolutely necessary we needed their help." Garnet responded. "Maybe at least a few of their reserve members would be useful, but not the whole team."

"I do know someone who can help us, but I don't think a few of us are going to like it." Colossus announced, much to Wolverine's irritation. "You don't mean?" Logan growled. "Da, exactly." Piotr replied with a nod and then he turned to Connie. "Connie, the X-Men now have a very special job for you."

"Whatever it is Mr. Colossus, the Crystal Temps will do what we can!" Connie said exuberantly as Peridot, Lapis, Bismuth and Nephrite assembled behind her with goofy grins on their faces.

"I admire your optimism malen'kiy. And please, call me Piotr." Colossus continued. "I cannot believe I am saying this, but we need you to find for us," he ordered her. "Deadpool!"

Wolverine giving a loud aggravated moan followed this up.

Well, this sure took a while, hasn't it?

Bitch, a while doesn't even cut it!

Wait, Deadpool?! How did you get here?

I came here to yell at you for prolonging my long-awaited proper debut for months now! Well I've had it up to here with your lazy-as-shit behavior! Next chapter, you better let me help you out or I'm taking that "ANDY ONLY" folder on your laptop for myself!

You monster, I worked hard to build up that collection! Okay fine, you can help in parts. Deal?

Deal! And what are you still doing here? Get the hell outta here until next chapter, The Deadpool and Peridot Show! Damn, that chapter title really rolls off the tongue.