Hey, everyone! I'm back with the final chapter of Ben 10 meets DC Super Hero Girls Mayhem in the Multiverse! Let's begin!

I DON'T OWN ANYONE IN THIS SERIES! Except the Titans of Goo Jit Zu, Supergirl's new form, her Saiyan family and the girls Geogans, their mine.*

Last time, on Ben 10 meets DC Super Hero Girls Mayhem in the Multiverse, the other heroes were doing their missions, with the Autobot's team taking down the Legion of Doom, and the others trying to stop the wedding. Meanwhile, in the Phantom Zone, the heroes in it were trying to figure out a way to get out!

Aquaman: Now we know there's gotta be an answer. Youse gotta use those noggins right there, man. You gotta use them to grab that answer. Seriously, man, nothing?

Aqualad: Is it a bread box?

Aquaman: Ding-ding-ding, you got it. Man, you're good kid. You are good Whoo!

That's when a portal open and the Super Hero Girls with Ben 10 has appeared!

Bumblebee: Anyone need a lift?

Ben 10: 'Cause you guys could use one.

Then, another portal open up and Spider Man came through it!

Spider Man: Oh, looks like my team was too late to get here first.

Captain Carter: Even better, the more of us, the better to take the Legion down!

Back at the Hall of Doom...

Optimus Prime: [as the Legion is trying to get up] This is too easy!

Maxxor: Yeah, it is.

Tom: [sees the amulet] There's the amulet!

Ruby: I got it!

But before she could grab it, it broke and the Superheroes from the Phantom Zone came out!

Azure Lion: [draws his sword] Now, our true fight begins!

Ben 10: Not going to happen, Lion!

Peng: [chuckles] You think you and your friends can stop us?

Ben 10: I know we can. [dials a alien] It's hero time!

He then transformed into his Eon form!

Super Hero Girls: [shocked] You have an Eon transformation?!

Azure Lion: A Chronian?

Eon: Here goes nothing!

He then uses his chronokinesis to send a green dome around Earth to fix the damage that Eon has done! Then he transforms back to Ben before anything else could happen!

Azure Lion: How?

Ben 10: Let me guess, you absord Eon? Diana was right, I need to care for everyone I care for, even if it includes those who hate me.

Azure Lion: [growls] [charges at Ben] [yells]

Then...

Eon: [slams into Azure] Backstabber!

TapOut: [to Wonder Woman] Shall we, friend?

Wonder Woman: [nods] Heroes! Take them down!

Soon, the heroes fought against the Legion and the Outcast! Meanwhile, with the two Kryptonians...

Superman: Can you see what's happening?

Supergirl: [using her X-ray vision] Kryptonite's messing with my X-ray vision. [sees something bad] Oh, no.

Superman: What is it?

Supergirl: She's free.

Then, from the top...

Bonz-eye: [as Sammy opens the top] Super flesh being!

Supergirl: Bonz-eye. Sammy.

Sammy: Come on, friends, we're getting you two outta here!

Superman: No! I have to stay. Kara, you gotta run. She'll come for you.

Supergirl: [sighs] I'm not leaving you like this, Kal.

Superman: Why do you have to be so bullheaded?

Supergirl: Yeah, yeah, I am bullheaded, aren't I? Cythonna, I give up. Do you hear me?

Superman: Kara... [grunts] What are you doing?

Sammy: Come on, Kara, we gotta go!

Supergirl: Sorry, Kal and Sammy. [as Cythonna appeared] I have no choice. [to Cythonna] It's your lucky day. I give to you, Cythonna. I'm all yours.

Bonz-eye: Don't!

Superman: [grunts] Kara! No!

Soon, Cythonna poset Supergirl! Meanwhile, with the others...

Lex Luthor: [Cythonna's magic worn off from the Legion] [as the Legion was tied up] Okay. What exactly happened here?

Star Sapphire: [groans] Felt like evil overdrive. Totally grody. Ugh!

Green Lantern (Hal): That's the last of 'em, Wonder Woman.

Wonder Woman: Good work, Hal.

Ruby: What about Eon and the others?

Tech: If we could create a chronological wave, we can send each one in the right chronological time when they-

Whiss: Oh, speak in english!

Tech: [sighs] Ruby's power plus Clockwork's powers equals time wave to send each villain back to their original point when they were taken out of.

Ruby: Would that even work?

Clockwork: [transforms from TapOut] There's only one way to find out! [grabs Ruby by the waist]

While that was happening, Eon was fighting the three demons with his strength!

Eon: You think you monsters can stop me! I'm a Chronian! YOU ARE NOTHING BUT MONSTERS AND ALWAYS WILL BE!

Yellowtusk: [sees Tennyson and Ruby combinding their powers] So should worry about Tennyson's power combinding the huntress' powers to stop us all.

Eon: [turns around] [sees what Yellowtusk was talking about] No. [runs towards the two] No, no, no!

Clockwork: [as Ruby closes her eyes] Ready? [ready his powers]

When Ruby opened her eyes, the two created a wave that when the Outcast was hit by it, they were turned to stone and went back to their original point where they were taking out!

Eon: [as wave hits him] NOOOOOOOOOOOOOOOOOOOOOOOOO!

Soon...

Clockwork: [lets go of Ruby] [panting]

Yang: Did it work? Have they...

Tech: Went back to their original timelines where they were pulled.

Bumblebee (Autobot): So, that's it, we won?

Wonder Woman: [to Batgirl] Any sign of Supergirl yet?

Batgirl: Nope. Not of her or Superman.

Wonder Woman: Come on, Kara.

Then came in...

Darius: [he, his friends and the Lost Bots came in] [panting]

Ben 10: Darius? Where've you guys been?

Darius: [panting] Supergirl... Cythonna...

Wonder Woman: What about Cythonna?

[explosion]

From the explosion, they could see Supergirl, but something was wrong with her!

Wonder Woman: Kara?

Supergirl (Cythonna): Kara is gone. I am Cythonna.

Azakai: That's not good.

Aqualad: What do we do, Wonder Woman?

She looked at the Legion, the other heroes and Supergirl and realise...

Wonder Woman: Hal, you and the others get the Legion to safety. We got Cythonna.

Hawkman: No way. She's too powerful.

Green Lantern (Hal): Carter, they can handle it. This is a job for the Super Hero Girls.

Wonder Woman: Mmm-hmm.

Dax: Well, we're not leaving!

Boaragon: Yeah. You'll need all the help you can get!

Soon, the Super Hero Boys took the Legion somewhere safe, while the other heroes took care of Cythonna!

Batgirl: Okay, D, what's the plan?

Wonder Woman: We fight.

Supergirl (Cythonna): I was so hoping you would say that. [blasted Wonder Woman with her magic]

Wonder Woman: [gets hit] [grunts]

Zatanna: Diana!

She then charged at Cythonna, but only to get smack away. Then, Green Lantern and Batgirl came, only to get crushed by Cythonna and tosses aside. Then came in Fyra, Gorgor, Azakai and Wormskull with their attacks ready.

Fyra: Attack! Magma Cannon! [fires fireballs from cannon]

Gorgor: Stone's Throw! [throws rock at her]

Azakai: Poison Punch! [throws slimy fist at her]

Wormskull: Skin Bones! [fires little bones at her]

The four attack combinded with each other to create a boney fist at Cythonna! But it did nothing to her!

Wormskull: Oh no!

Supergirl (Cythonna): [blows the Dragamonz's away]

Dragamonz's: [gets blown away] [yelling]

Supergirl (Cythonna): [chuckles evily]

Then...

Yondu: [comes from behind Cythonna in ship] [yells] HEY THERE, JACKASS!

Supergirl (Cythonna): [grabs ship] You think charging at me from behind will do a thing?

Yondu: Who said I was attacking?

Purple Tigress: [jump above Cythonna] Clout!

But before she could hit her, Cythonna punched her fist, creating a powerful shockwave that send everyone to their butts! Then, Cythonna went to Bumblebee to punch her!

Bumblebee: Kara, stop! Kara! [echoing] Kara!

In Kara's mind...

Cythonna: A rather strange representation of your inner mind, Kara Zor-El.

Kara: It's my happy place. Means I still run things in here. I knew I wouldn't stand a chance against you in the real world, but I figure now, at least I have some home-field advantage.

Cythonna: [laughs mischievously] Wait, are you challenging me?

Kara: Yeah, [readys up] something like that.

Soon, Kara was kicking Cythonna's butt! Back outside...

Supergirl: [grunts]

Bumblebee: Kara?

Supergirl: [grunts]

Bumblebee: Guys, she's fighting it.

Monkey King: [he and his friends came in] Perfect! Kid, take her down while she's distracted!

Monkie Kid: Right! [charges at Supergirl] [pins her with his staff] Kara, I know you're in there! You gotta fight it!

While that was happening, Batman pulls out a cast with something inside it!

Superman: What is that?

Batman: [indisncted bat grunting]

Superman: What do you mean, in case I ever got out of line? [sighs] Serious issues.

Back inside Kara's mind, Cythonna was back winning the fight!

Cythonna: [panting] You caught me off guard. Seems even I understimated you.

Kara: Yeah, A lot of that going around.

Soon, they were inside Kara's Sweet Justice memory!

Cythonna: But you are no match for me.

Soon, Cythonna was back in control of Supergirl's body!

Supergirl (Cythonna): [panting]

Wonder Woman: Kara, are you still in there?

Supergirl (Cythonna): Oh, she's still here, suffering. [kicks MK off her]

Soon, Batman pulled out the item from inside the case, which was a Batarang made of Krytponite! But when he was about to throw it at Cythonna...

Wonder Woman: Batman, wait!

Batman: [indisncted bat grunting]

Wonder Woman: I said, stand down! [throws her sword at Batman]

Superman: Uh, I, I'd do what she says, Bruce.

Wonder Woman: Sisters and brothers, Kara is in there. She needs us.

Ben 10: Yeah! We gotta reach her!

Wonder Woman: Kara, it is Diana. Fight this.

Supergirl (Cythonna): [grunts]

Bumblebee: Come on, Kara.

Batgirl: Kick her butt.

Green Lantern: We believe in you.

Zatanna: Show her who's boss in there.

Back in Kara's head...

Diana: We are with you, sister, always.

Karen: You got this, Kara.

Babs: You got this, Kara.

Jessica: You can do this.

Zee: Fight it.

Kara was happy about all her friends said, and starts to pick out something from her pocket.

Clark: Kara! I believe in you. I always have.

Ben: Now kick her butt, babe!

Cythonna: I can't wait to turn your despicable world to ash. This place only makes me all of the more homesick for Krypton.

Kara: You know what I miss most about Krypton? [pulls out crystal] The crystal.

Soon, Supergirl pressed it against her head, And Cythonna was absord into the crystal!

Cythonna: No, not again. Not again.

Supergirl: Zee, anywhere but here.

Strange Supreme: [to Zatanna] I'll boost your portal!

Soon, the two created a portal and Supergirl threw the crystal into it, sending Cythonna to another universe!

Grodus: Yes, we are victorious!

But before Supergirl can go to her friends...

Starscream: [crashes in] [grabs Supergirl]

Supergirl: [gets grabbed] Hey!

Starscream: No one interfear! [blasted off]

Ratchet: That was Starscream!

Tech: Eon must have somehow created a powersource to give him new life.

Batgirl: We gotta do something!

Strange Supreme: We can't. Only Supergirl can do this.

Wonder Woman: But, we just got her back.

Strange Supreme: She can do this.

Meanwhile, Starscream took Supergirl to the Moon, and tosses her towards a wall!

Supergirl: [hits wall] [grunts]

Starscream: [lands] You... [angry] [walks towards her] You've ruin everything, you monster! And now, I will have these last moments killing you!

He then started to firing at Supergirl, but she was dodging the blast!

Starscream: [blasting her] You think you've won? You haven't won anything! The people of Earth don't even care about you!

Supergirl: [grunts] You're wrong! I know I'm still trying to figure out my role in this world, and my friends are there to help me!

While she said that, the girls cards started to glow red, yellow, white, green, purple and blue.

Bumblebee: [as they pulled their cards out] Is this?

Wonder Woman: Sisters, all together! Now!

Then they threw their cards up to the sky! While they did that, Supergirl's card glows orange!

Supergirl: [grows a determand look] My friends made me who I am, and Tennyson was the best teacher I could have. As long I have those things, this world is perfect! [tosses her card above her] [grunts]

Then, the seven cards grew in size, and the heroes Geogans, Huntress, Ramarilla, Pharoh, Arachnid, Superior, Screem and Ningem appeared behind her!

Starscream: You think these creatures can stop me! I will stop you in your tracks! [pulls out his guns]

Meanwhile, Alura felt her daughter's Ki.

Alura: [feels Kara's Ki] Kara.

Ki: You know you must do.

Alura: I haven't left this planet in years.

Ki: Your daught needs you. I'll go with you.

Alura: [sighs] Thank you. [grows a determand look] Let's go to my daughter!

Soon, the two flew off to Supergirl with great speed! Before Starscream could blast Supergirl, the two Saiyans came in with bright yellow light!

Starscream: [covers his eyes from the light] [grunts] What?!

Supergirl: [sees light] Huh? [gets hit] [grunts] [about to fall over]

Alura: [holds her] Hey, Kara Danvers. Did I miss the fight?

Supergirl: Huh? Alura!

Ki: I'm here too sister.

Supergirl: [smiles]

Alura, Ki, and Supergirl: Let's end this! [starts to go Super Saiyan] [yells]

While that was happening, the others were watching on Earth!

Wonder Woman: [sees the yellow light] Is that Kara?

Ben 10: I got to get up there! I need to help Kara!

Strange Supreme: [opens portal] You better go big on this one if you want to save her.

Ben 10: Oh, I can go big! [jumps through portal and transforms into Way Big]

Way Big: [lands on moon] Kara? Where are you? [sees Starscream] Starscream! [runs towards him]

Starscream: [sees Ben coming towards him] You stay out of this, Tennyson! [blasted him]

Way Big then jump above Starscream's blast and started to float up in space! While that happened, the three Saiyans were in their Senzu forms!

Super Supergirl: You won't stop me! Not now, not ever! [to the Geogan] Attack!

Ramarilla: Granite Horns!

Huntress: Solar Flare Strike!

Starscream: [getting hit] [grunts]

He then flies up into space, where Way Big was!

Starscream: [to Way Big] I underastimated the Kryptonian, Tennyson. [pulls out his gun] But I won't have any problem of destroying you, you gigantic freak!

Way Big: [gigantic deep voice] Oh, you think I'm big now, but I can get bigger! [activate ultimate mode]

He then goes Ultimate! He resembles his pre-evolved form but with longer limbs and four fins forming a cape for Way Big. Way Big's body is iris purple with white as a secondary color, his torso is darker purple color with blue glowing parts. The red parts are replaced with blurish green, while his feet comes to a stump. The Ultimatrix is located on his body. He then uses his size alternation to grow to the size of the planet Jupitor!

Ultimate Way Big: [growls]

Starscream: [shocked] Oh, that is bigger. [scared] Well, Tennyson, let's call this whole thing off, and I'll be on my way! [blasted off]

Ultimate Way Big: [fires his more stronger comic rays] [roars]

Starscream manage to dodge a little bit of the ray, but enough to fry his jets!

Starscream: Oh no. [sees Super Supergirl coming at him] Oh no!

Super Supergirl: [grabs Starscream by the leg] Sorry, screamer, but you're not ruining my day!

She then started to spin Starscream around, threw him into deeper space, and uses her own Ki to destroy Starscream!

Super Supergirl: [chargers her Ki] Super Saiyan Kryptonian Blast! [fires it at Starscreams] [yells]

Starscream: [sees beam coming at him] NOOOOOOOOOOOOOOOOOOOOOOOOO!

[massive explosion]

When the smoke cleared, Starscream was destroyed!

Supergirl: [transforms back] [pases out] [sighs]

Ultimate Way Big: [grabs her with his massive hand]

Back on Earth...

Batgirl: [sees Ultimate Way Big] [everone in shocked] Wow, I didn't know Ben can go that big?

Harley Quinn: Yeah, he sure is a big boy.

The next day...

Kara: It's not like we're besties or anything now, but he is clearing out a room for me in the Fortress of Solitute.

Rook: That's good to hear.

Babs: You mean the Buddy Bunker? [her phone rings] [looks at it] Batman. [puts it away] He can wait. You know, ever since Robin got all swept up in his Nightwing phase, he's been bugging me.

Rook: Indeed.

Karen: Wow. I remember when you would have killed to be his sidekick.

Babs: Well, I've got my own sidekick now.

Turns out, she was talking about Harleen, who was taking gum out from under the table.

Harleen: [puts gum in her mouth] Oh, no, you're the sidekick. This girl's a headliner through and through. [blows bubble]

Babs: Besides, if Batman really needed help, he's got his League buddies, right, D?

Diana: Yes, while I agreed to be a reserve member, my true place is here.

Ben: You girls are the best team I could ever had. And to save your Earth, I'm so proud of you all.

Jessica: Thanks Ben. You know, Zee I've been meaning to ask. Where did you send that Cythonna crystal, anyway?

Zee: You know, since I've come to terms with this whole dark magic part of me, I figured let it decide.

Ben: I'm sure it's fine. [to Kara] I'm so proud of you, Kara Danvers. You manage to create your own Ki attack.

Kara: Thanks, Ben Tennyson. [gets a call] [answers it] Hello? Alura, hey! What's up? Oh, really? You want to come on your show? Is it cool if I bring my friends? Thanks! What time? Got it! See you then! [hangs up]

Rook: What did you mom want, Kara?

Kara: She want me to be in the concert tonight! And you guys are invited too!

Harleen: Oh cool!

Diana: Come, sisters and brothers, let us prepare for tonight!

Later that day, our heroes were at the stadium, in a private room, where Alura and Skillet was playing.

Ruby: This is really a nice place.

Fergy: [eating sweet] You're telling me, red!

Goozilla: Wonder what the band want with Kara?

Burgertron: [looks at the stage] I think it's starting.

[crowd cheering]

John: Hello, Metropolis! How are doing tonight?

[crowd cheering]

John: We would like to honor this concert to the brave heroes who save our home. And to my drumer's daughter.

[starts to play Save Me]

[electric guitar playing]

John

This is the place that no one can see

I don't like to show (I can't help it)

This is the darkness over me

It's just the world I know (I can't stop it)

Reachin' for the light

Reachin' from inside

Help me tonight

I'm closer to the edge (Tonight)

I'm standin' on the ledge (So why)

Won't you reach out your hand

To save (To save), to save me? (Tonight)

I'm damage if you dare (Tonight)

If feels like no one care (So why)

Can't I come up for air?

Just save (Just save) just save me

What are you waitin' for?

Someone save me

Peel back the skin, exposed to you

Take pleasure in the pain (Please don't stop it)

Tell me what I'm suppose to do

It ain't easy to open up this way (I can't help it)

Reachin' for the light

Reachin' from inside

Help me tonight

While that Line was playing, a coffin came coming above them!

I'm closer to the edge (Tonight)

I'm standin' on the ledge (So why)

Won't you reach out your hand

To save (To save), to save me? (Tonight)

I'm damage if you dare (Tonight)

It fells like no one care (So why)

Can't I come up for air?

Just save (Just save), just save me

What are you waitin' for?

Someone save me

Then, electric started to hit the coffin, and brakes through was Supergirl with a black and grey suit, a knight's cape, a sword, and the Skillet's shield from the album cover!

Reachin' for the light

Reachin' from inside

Help me tonight

I'm closer to the edge (Tonight)

I'm standin' on the ledge (So why)

Won't you reach out your hand

To save, to save me? (Tonight)

I'm damage If you dare (Tonight)

It feels like no cares (So why)

Can't I come up for air?

Just save (Just save), just save me (Tonight)

I'm closer to the edge (Tonight)

I'm standin' on the ledge (So why)

Won't you reach out your hand

To save (To save), to save me?

What are you waitin' for?

Someone save me

Supergirl: [points sword up to the sky] Whoo!

End

That's the last of this series! Or is it? I was thinking of doing a halloween series for this. Let me know if this is a good idea. Until next time, see ya later!