You, Ruby, Weiss, Blake, Jeanne, Pyrrha, Rin, Nora, and Tippi arrived in Count Bleck's room. 

Tippi: I feel ... something very, very powerful ... is it the Chaos Heart? 

(Y/N): It has to be. 

???: BLEH HEH! 

Count Bleck appeared. 

https://youtu.be/cwILmqkLkUs

Cout Bleck: I see you've come at last! So you really are the heroes of the Light Prognosticus! 

(Y/N): Bleck! 

Count Bleck: But you are far too late to stop the Dark Prognosticus and me... Count Bleck! All worlds will soon end. Come to grips with that now, for you cannot stop it. I suggest you make yourself comfortable and enjoy this one, final spectacle!

Tippi: But...why? Do you really want to destroy everything? Why would you do this?! How...COULD you do this?!

Count Bleck: Count Bleck does not care about any world! They are all meaningless. Better that I destroy them! Better yet, I shall make it as if they never existed at all!

Tippi: If the worlds have no meaning, was our meeting meaningless as well? Answer me, Blumiere!

Everyone: WHAT?! 

Weiss: Wait, you two were lovers?! 

Blake: Then that means, what Merlin said about Tippi once being human was true! 

Jeanne: That means you can stop now! You two have seen each other again! 

Count Bleck: I'm afraid not. Count Bleck doesn't have to explain it. The hour has grown too late. You should know that, Timpani. 

Timpani: Blumiere... ......................... My love, Blumiere... Or rather, Count Bleck... The only way we can stop this is to defeat you.

(Y/N): She's right. No matter what, we can't let you go through with this! 

Count Bleck: BLEH HEH HEH HEH! BLECK! Very well! But I will also do what I must! Count Bleck is the deleter of worlds! My fate is written in the Dark Prognosticus! Do not think for a moment that I will hesistate to strike you down. ALL NOW ENDS! Leave me, Nastasia. 

Nastasia: What? But Count! 

Count Bleck: I will not say it again. 

Nastasia: Yeah, right away ... Count. 

She then left. 

Count Bleck: Are you prepared heroes? Our duel will be worthy of the last clash the world will ever see! 

He began to attack with magic from his staff and with dash attacks, but as you all hit him- 

Everyone: AGH! 

Pyrrha: No damage? 

Rin: It must ... be the Chaos Heart. 

Count Bleck: You can't so much as tug on the cape of Count Bleck! You have failed! I expected more from the heroes. But now- I WILL WATCH YOUR LIVES END! AND THEN YOUR PRECIOUS WORLDS SOON AFTER! 

He prepared an ultimate attack! 

Tippi: This can't be the end! 

???: Yeah! Why are you giving up now? 

(Y/N): BOWSER?! 

Bowser appeared. 

Bowser: You idiots never gave up this easily when you attack my castle! 

Peach and Yang appeared too. 

Ruby: Peach! Yang! 

Peach: We would never let you destroy everything, you horrible count! 

Yang: Yeah! We're not throwing in the towel! 

Tippi: How did you guys get here? 

Bowser: I fell through the floor before the ceiling flattened me. 

Peach: I did too, and landed right on Bowser. 

Nora: Ooh, that's got to- 

Peach: Actually, it was a soft landing. 

Everyone: Oh good. 

Yang: Honestly, I don't know what happened. But Peach found me unconscious. But now it's time to kick some bad guy ass! 

Bowser: You heard him! You got to deal with all of us! 

All of you started to glow. 

Count Bleck: What? What is- 

The Pure Hearts came together, and they used a massive shockwave, weakening Count Bleck and destroying his barrier! 

Count Bleck: WHAT?! MY BARRIER!! 

Tippi: A group of heroes unite, their hope burns forth light to shatter the walls of blight!" 

(Y/N): I guess Merlee was right. 

Count Bleck: So be it...says Count Bleck! But don't celebrate just yet. Your precious worlds aren't safe until my last breath! NOW IT ENDS! 

https://youtu.be/C_0L5VRQt-0

Count Bleck teleported to our heroes, but this time, you were able to cancel out his magic using Aizawa's Quirk, and hit him dead on! 

The Count slowed down time, but that meant little to- 

(Y/N): MIMIC: ZA WARUDO! 

A few hits to him, caused more pain! 

And then- 

Team RWBY: KAMEHAME- 

Count Bleck: Count Bleck won't let y- 

But his staff was taken by Pyrrha. 

Pyrrha: I don't think so Count Bleck! Quickly! 

Nora: EAT THIS! 

Nora used an electrical smash to Count Bleck, sending him to a punch from Bowser and Peach, and then- 

Jeanne and Rin: AVAN STRASH! 

Count Bleck: BLEEEEEEEEEEEEEH! 

Team RWBY: HAAAAAAAAAAAAAAAAAAA! 

He was blasted, and fell down defeated. 

Count Bleck: Ex ... Excellent ... 

His monocle was cracked, his clothes and cape were tattered and ripped. He was bleeding heavily. The man couldn't fight anymore. 

Nastasia: COUNT! 

Nastasia appeared with a worried look on her face. 

Count Bleck: You have down well ... now ... kill me. 

(Y/N): WHAT?! 

Count Bleck: Dispatch me and the Chaos Heart will disappear. The prophecy will be undone. 

Ruby: No! 

Count Bleck: But- 

(Y/N): You and Tippi were once lovers! We can't do this to you or her! 

Count Bleck: You don't understand. After all I've done, I don't deserve mercy or forgiveness. 

Tippi: But- 

Count Bleck: Timpani... When you vanished, I searched long for you. I never gave up looking... I searched and searched... But I never found you. Without you, the world held no meaning or joy... So I used the forbidden prophecy of the Tribe of Ancients to end all worlds. I wanted to destroy everything that had taken you away from me...

Tippi: But I'm here now! No one can keep us apart anymore! 

Count Bleck: It's ... alright. Just knowing that you are still alive... And knowing that the world you still live in will continue... It gives me peace. I do not have long to live.

Yang: Damn, this is really sad. 

Weiss: Can't help but feel bad for him. After all he did, he's just a sad depressed man. 

Then Nastasia heard a sound and- 

Nastasia: COUNT! LOOK O- AAAAAAAAAAAAGH! 

She jumped in the way of a magic attack meant for her boss! 

Count Bleck: N-NASTASIA! 

???: IDIOT! That was meant for him! 

Dimentio appeared. 

(Y/N): YOU! DIMENTIO! 

Dimentio: Oh come on now, I was going to give him the peace he wa- 

Jeanne: DON'T GIVE US THAT CRAP, ASSHOLE! 

Rin: You only did it so you could get the Chaos Heart for yourself! 

Dimentio: Ah ha ha. Nothing gets past any of you. But this is my moment! You all beat Count Bleck, and used the Pure Hearts as well! This is finally my sparking hour! But unfortunately, you all have to die. They're all yours, Mistress Y! 

He snapped his fingers, and- 

Yang: AAAAAAAAAAAAAAAAAAAAAAAAAAARGH!

Yang screamed in pain as a sprout emerged from her head. 

Yang: (in a hypnotized state) I am Mistress Y. Lord Dimentio, what is your bidding? 

Peach: Y-YANG?! 

Bowser: What the? How did- When did she grow a veggie out of- 

(Y/N): WHAT DID YOU DO TO HER?! 

Dimentio: When you found Yang, I had planted a seed inside of her brain. And now it's finally sprouted. Mistress Y, run along now, and get ready. 

Mistress Y: Yes. 

She got into position. 

Dimentio: NOW LADIES AND GENTLEMEN! GET READY FOR THE GREATEST MAGIC SHOW YOU'LL EVER SEE! 

Dimentio, the Chaos Heart, and Yang all began to fuse together, and- 

A giant monster, with Yang's physique, Dimentio's skin, and a dark aura emerged! 

Ruby: YANG! 

Super Dimentio: THE DARK PROGNOSTICUS! SAYS THAT YANG IS THE PERFECT HOST FOR THE POWER OF THE CHAOS HEART! AND NOW WITH MY POWER TOGETHER, WE ARE INVINCIBLE! 

Count Bleck: NO! DO- 

Super Dimentio used his magic to teleport Count Bleck, Nastasia, and Tippi to his dimension! 

Dimentio: Now that the Chaos Heart is mine! I will destroy everything and create worlds in my image! I WILL BE THE EMPEROR OF ALL REALITY! 

(Y/N): YOU MONSTER! 

You went SSJ and tried to hit him, but- 

(Y/N): AAAAAAAAAAGH! 

He flicked you back! 

Super Dimentio: HA! Did I mention, that no attacks hurt me!? I'm invincible! FISHMAN KARATE: DEMON BRICK FIST! 

Super Dimentio, critically injured all of you with an explosive punch! 

Super Dimentio: TIME TO DIE HEROES! 

At the same time, all of the worlds began to shake and tremble as the Void was destroying them! 

In Dimension D... 

Tippi: We have to do something! (Y/N) and the others are in trouble! 

Count Bleck: We cannot. Without the Pure Hearts, there is no way to counter the Chaos Heart. All we can do is give up...

Tippi: What are you SAYING?! You promised we would find happiness together! Was that all just a lie?!

Count Bleck: It wasn't Timpani. But without the Pure Hearts, we're doo- 

She slapped him. 

Tippi: BLUMIERE! How can you think it would end here, after all we have suffered without each other? We found each other again because we stayed alive... How can you admit defeat?! I will not! I will not give up! You promised we'd find happiness. You PROMISED!

???: She's right Count! 

Mimi and O'Chunks appeared. 

Count Bleck: My minions... How did you find us here?

Mimi: Gosh, I could follow your big smile anywhere, Count!

O'Chunks: Ah, she lies like a wee rug, this lass! Nastasia told us, Count! She said you'd come 'ere... Or... She said she FELT you'd be here...or somethin' along those lines.

Count Bleck: N-Nastasia. 

O'Chunks: Talk about goin' the extra mile! She even sacrificed 'erself teh save yeh! Lissen, Count, I promised me life as well, an' I'm not afraid teh live up teh it! So... Yeh gotta let me 'elp!

Mimi: Yeah! I mean, there's no WAY Dimentio's getting away with this! He pulled a really dirty trick on you, but we'll always stick by your side!

Count Bleck: My... My loyal minions...

He began to cry as then the Pure Hearts appeared, all powered up! 

Count Bleck: What?! 

He was even restored to normal. 

Count Bleck: How did the Pure Hearts get their power back? 

Tippi: Isn't it obvious, Blumiere? Pure Hearts are the very feelings of our souls. As long as we feel love, they live on!

Soon... 

Super Dimentio: Now then, let's stop wasting time and finish this! Cia- 

But then the Pure Hearts appeared! 

Super Dimentio: WHAT?! NO! HOW DID- HOW ARE THE PURE HEARTS H- 

All of Super Dimentio's power, invincibility, and connection to Yang disappeared. 

Super Dimentio: NO! THIS CAN'T BE POSSIBLE! 

Yang then ripped herself out! 

Yang: I'VE HAD ENOUGH OF BEING THE PUPPET TO YOU! YOU ASSHOLE JESTER! 

Everyone: YANG! 

You guys were then restored back to full power! 

Super Dimentio: NO! NO! THIS CAN'T BE POSSIBLE! 

(Y/N): It's over for you Dimentio! 

You went SSJ! 

(Y/N): TIME FOR YOU TO DIE! 

He tried to attack, but everyone attacked him at once, and- 

(Y/N): HAAAAAAAAAAAAAAAAAAAAAAAAA! 

You fired a massive KI Blast at him, and Dimentio turned back to normal! 

Dimentio: THIS CAN'T BE! HOW?! HOW COULD I HAVE LOST WHEN I HAD YANG AND THE CHAOS HEART?! HOW?! 

Peach: I think that prophecy was wrong all along. 

Nora: We believed in kicking you ass, and you just kept clinging to that stupid thing like it was your life. 

(Y/N): No events are decided entirely on fate. Face it Dimentio, this is your fate! And you couldn't accept it! 

Dimentio: HAHAHAHAHAHAHA! DO YOU THINK YOU'VE WON?! YOU IDIOTS! THIS IS FAR FROM OVER! HAHAHAHAHAHAHAHAHAHAHA! 

But as he finished laughing, you killed him with one more blast! 

The Chaos Heart then disappeared. 

Everyone: Wait, what? 

Bleck, Tippi, and Mimi, and O'Chunks appeared. With O'Chunks carrying Nastasia! 

Count Bleck: The end of all worlds is really upon us. 

Ruby: Wait, Dimentio's death wasn't enough? 

Count Bleck: I thought that the Chaos Heart would disappear if the one controlling it died. Dimentio ... he must have left a fraction of his magic to continue controlling it. It won't last long...but it may be enough to ensure the end of every world...

Bowser: Oh, GREAT! So what do we do now?

Count Bleck: There's only one thing we can do. 

He opened a way to the wedding altar that Yang, Bowser, and Peach were at. 

Yang: This place. 

Count Bleck: Timpani... Do you still.. Do you still love me?

Tippi: Yes...Blumiere. Of course I do.

Count Bleck: Then you must come with me.

O'Chunks: 'Ey, Count! What're yeh doin'?!

Count Bleck: We will use the Pure Hearts again, this time to banish the Chaos Heart. All we need is true love... And that is something I am lucky enough to possess... But... With the Chaos Heart gone, the Pure Hearts and those linked to them... They may cease to exist...

Mimi: You mean you might go away? B-But I don't want you to go!

Count Bleck: All of this is my fault. The price is mine to pay... I do not have long to live anyway. But you, Timpani... It pains me to know this may cut your life short... Still... There is no other way to end this.

Tippi: I know, Blumiere... I know...

Count Bleck: Timpani...

Tippi: Don't say another word... As long as I am with you, nothing else matters.

(Y/N), Ruby, and Pyrrha: AWWWWW! 

Weiss: Guys! I don't want to interrupt the moment, but- THE VOID! 

Count Bleck: We must go now. 

Tippi: Yes. 

The two then went to the altar. 

https://youtu.be/P8TrST06phc

Count Bleck: There were so many things I wanted to say to you...but I could notfind the words.

Tippi: Oh, Blumiere... Only one  thing matters to me now. I never had the chance to return your question... Blumiere... Do you still love me, as well?

Count Bleck: Of course... I have thought about you every moment since you disappeared... But I have caused you so much suffering...

Tippi: Perhaps...my life would have been more carefree without you, that is true.

Count Bleck: But I had to be with you, Timpani. I will never apologize for that...

Tippi: I know, Blumiere. And I love you...

Count Bleck: And I love you, Timpani... Hundreds of thousands of years from now, that fact will not have changed...

The Pure Hearts soon appear, and Tippi and Count Bleck soon join up with them into the Chaos Heart. 

A bright light shines as the Void in every world begins to disappear. 

Cinder: GUYS LOOK! 

Emerald: It's going away! 

Mercury: HA! Lord Bowser and the others did it! 

Roman: We're going home, safe and sound! 

Neo: "HAIL LORD BOWSER!" 

Even Sammer's Kingdom was brought back from the destruction! 

Blumiere: Timpani...do you remember the promise we made to each other that day?

Timpani: Yes, I remember. 

Blumiere: If there was a place where we could be happy together, we would find it. Will you come with me to that place now? 

Timpani: Blumiere, of course. I will always be with you.