A saiyan in Equestria?

"Where am I?" thought Ato

"I had just finished eating at RD's place, and went to see that princess pony, and now I'm here." When he tried to remember anything else, it just was a blur.

"Oh, another victim." said an unknown voice

"Who said that? Where are you?" said Ato

"Me? I'm everywhere!" suddenly a freak of nature appeared in front of Ato.

"Your a strange-looking one." said the thing

"Oh, I'M the strange one." said Ato sarcastically

"Do you know where this is?" said the thing

"No." Ato replied

"This is my realm. The realm of Discord and disharmony of course. Look around."

All Ato saw was emptiness, a white void, strange that a supposed "realm of chaos" was so bland

"Why am I here?" asked Ato

"You exist here right now so I can make your live as miserable as possible." as soon as the thing said that, the area around them molded into a horrifically familiar place

Suddenly, the thing wasn't itself at all, it was someone he remembered far too well.

"Oh look, another worthless monkey" said the familiar thing

"... no...it's not real... not real.." murmured Ato

"Say my name, monkey, say it or you will suffer more." said the familiar thing

"F-F-Fr" Ato couldn't bring himself to say the rest

"Say it!" the familiar thing mercilessly punched Ato in the gut, leaving him writhing on the floor.

"Frieza! Frieza! Frieza! Frieza! Frieza... Frieza" he choked

The familiar thing kicked him, causing Ato to choke out blood.

"P-please spare me... I don't want to di-" Frieza choked Ato and dug his nails into his neck

"Shut up, I'm going to make sure you suffer all the way through this, you rat." Frieza had an ugly smile carved on his face.

Frieza then proceeded to cripple Ato by striking his legs with ungodly sharp energy beams, his legs were bleeding out, and Ato was slowly dying of blood loss.

"Look at you. Your terrible, you are one of the last survivors of the proud saiyan race and now you're are whimpering wreck made of nothing but broken bones. Your father died for nothing, trying to protect you." Frieza said coldly

"I've took everything you cared about your family, your home, what do you have to live for?" Frieza asked cynically

"...ends" said Ato barely breathing

"What?" Frieza asked curious

"Friends." said Ato

"Friends? Heh heh, I'll make sure they die slowly and painfully." said Frieza cruelly

"No." Ato suddenly stood up

"Wait what are you doing?" the voice came from Frieza, but it didn't belong to him

"You can remind me of my past all you want, but you do NOT screw with my friends. You hear me?!" Ato was charging up energy at a fast rate.

Frieza was suddenly changing shape back into the thing again and the setting was slowly changing back to a white void "No wait, stop! I'm the boss here! You don't make the rules!"

"I don't take orders from cowards, now I'd like you to meet my friend called justice!" said Ato defiantly

Ato uppercutted the thing before rapidly firing explosive ki in his face, finishing it with a throw to the hard ground

Ato glared at the abomination lying before him, something that had put him through physical and mental torture just a minute ago, was now a bloody pulp begging on his knees for mercy.

"Hey freak, do you know what my favorite word that rhymes with fang?" Ato said to the thing with his pointer finger aimed at the thing in the shape of a gun

"Bang?" the thing asked, knowing what was coming next

BOOOOOOOOOOOOOOOM!

And then it was all over.

Suddenly Ato woke up back in Castle Canterlot with Celestia waiting to greet him.

"Congratulations Ato, you've passed the test. You are now a knight." said Celestia