Final breath trio (not completed)

Holding out

BOOM

ZOOM (bones flying)

CRASH

As Chara ran and avoided the endless
attacks trying their best to hit Sans.
Sans kept blocking amd throwing them back making attacking pointless.

Chara soon stop attacking and focus on dodging in hopes of sans will run out of magic and energy to block or dodge.

Sans Pov

"This machine needs to hurry and finish charging I'm not sure how much longer I can keep this up" I thought to myself while making sure that kid doesn't get the chance to get a lucky strike on me

"Hey kid have ya ever heard of the term relax and let the stress fade away" I said with sacastic voice before landing a lucky blow on the human head which resulted in them looking more angry and glaring at me with a demonic type of look.

"Heh guess not oh well, but hey I guess if I was an unwanted kid I'd find it pretty hard to relax as well. So I guess I'm gonna have to show you another way to relax permanently and don't worry it works every time".

I then surrounded the kid with multiple blasters and bones

"Just ask the other fallen humans"

...

...

...

"Somewhere" else

...

"Huh that's strange usually they are here but not only are they gone...so is everyone else..."

...

...

...

The Battle between Sans and the human goes on for a long time which may seem annoying to Chara but better for sans because this gives his machine time to fully charge. Unfortunately due to the extreme use of magic Sans is getting more and more tired.

And that only ends in one way, no matter what the circumstances are.

Sans Pov

"Huff...puff...Ok I'm starting to lose my second wind here so that means it's gonna be his turn to fight" I threw more attacks at the human but even they are starting to notice the attacks slowing again.

"I gotta hand it to ya *huff* tha...that determination of yours really gives you the edge don't it."

As I kept trying to talk I felt my eyelids? I guess you can call them that begin to get heavier and heavier but I kept trying to keep them open.

*yawn* ok...maybe...I can...close them...for a...m...inu...te

SLASH

0.5

"..."

3rd Pov

Sans looks down at his chest and sees blood appear with some dripping from his mouth

Chara puts on a smug face thinking they got him.

But as soon as the kid drops their guard sans immediately begins to throw attack after attack at the human, throwing them in the air sending bones and blasters at them, then using his remaining strength sans put everything he had into his final attack before running completely out of energy

Sans fell on his knee holding his chest and took very deep breaths before speaking

Sans:"Well...that was...ve-ry dramatic on my part"

Chara smile grew and raised their blade again preparing to deal a final blow amd struck

No effect

And before Chara could say anything sans was back on his feet with a smile on his face again.

Sans:"Come on kid don't tell me you forgot after the countless other times we have been in this spot"

Sans:" This isn't like the first time we fought. You wanna kill me you're gonna have to do more than that."

Sans:"Not that I like have a huge wound on me but hey it's better than dying at this point".

Sans then look to his right and his smile grew.

Sans:"oh hey there taking your time again I see. Heh Well that doesn't matter now that you are here and by the looks of it you look pretty piss off." Sans then looks at the human with his eyes going dark

Sans:"I'm sure you know what comes next so how about we just get straight to the point."

Sans head begins to shake and his skull begins to Crack but this time Chara buttons remain unlike before

Not like it matters

Confused, Chara looks back at Sans when suddenly they saw Gaster appear but with an even more threatening aura than before

Chara:"Guess someone still mad after last time"

Before Chara could even prepare themselves "Sans" sent an endless wave of attacks while flipping the world around Chara.

Luckily for Chara this isn't the first time they fought like this and got their bearings quickly and started dodging well waiting for the right moment to strike.

3rd pov

Sans wouldn't give the human their turn no matter what and kept attacking and pushing his limits to the absolute breaking point but that wasn't going to stop him

All that matters is to hold out for the machine

Timeskip

Sans was on his last ropes and he can feel it so gathering as much energy as possible sans launch as many attacks as possible 

Chara was doing everything they can to avoid it but was still getting hit

So many attacks were being thrown that it was getting harder and harder to see and sans blasted as many blaster as possible lighting the enter hallway up then suddenly everything became to bright then to before it drop to silence.

...

...

...

Chara got up seeing the hallway somehow still standing then when they turned their head and saw the dust cleared, sans was standing there not being able to move, Being completely drained of magic and with this chance chara struck him a second time, then with a chance to breath they quickly healed themselves.

Sans stood there looking at his chest before closing his eyes and half smiled

Sans:"*huff...puff* heh come on kid did ya really think-"

SLASH

.  .  .

Sans shook in place before falling to his knee

"Cheap shot br- brat"

Sans:"Ok that Hurts but I gotta keep going I can't let this go to wast-" BEEP

As soon as sans was about to say something a loud beeping came from his pocket and it can only mean one thing.

Sans then quickly pulled the device out of his pocket seeing the screen said charging complete

With this sans smile grew and his health bar began to glitch out

"Heh kid I hope you're ready because what we just went through was only a taste of the real fight"

with that being said sans pressed the button on the remote activating the machine making everything go bright and within the brightness two shadows appeared.

This time the real fight

Finally

"Begins"