Requested by ShadowNathan777

These two possesses great powers and skills that makes even the Supernatural fear them

Dean Winchester

Peak Human Strength

Peak Human Speed

Peak Human Endurance

Expert Martial Artist

Expert Marksman

Magic

Immunity to demonic possession

Great Intelligence

Expert Escape Artist

Skilled Lock Picker, Thief and able to forge his own identity

Magic

Summoning Spells

Banishing Spells

Mark of Cain

Immortality

Regeneration

Telekinesis

Demonic Possessions

Immunity to most anti-demon spells

Resurrection

Precognitive Nightmares

Immunity to magic

Gears

Hand Gun

Demon-Killing Knife

Feats

Endured 30 years of torture in hell

Can hold his own against demons

Beaten Seraph Castiel to a bloody pulp

Survived a beating from numerous supernatural beings

Tanked hits from Castiel

The Mark of Cain makes it impossible to kill him

Possesses extensive knowledge on the Supernatural

Well-Versed in how police, fire departments and government agencies work

Alarmingly skilled in many areas favoured by law

Once exorcised 30 demons at once

Defeated Eve and Dick Roman through trickery

Killed many Supernatural beings

With Immortality, even Death is incapable of killing him

Considered to be extremely dangerous with prep time
(Sorry Batman but he's more dangerous than you even with prep time)

Weakness

Just a normal human

Little to no Superhuman durability and powers

Powers only come from the Mark

Can still be killed if the Mark is removed from him

Went on a killing rampage due to the Mark of Cain

Buffy Summers

Superhuman Strength

Superhuman Speed

Superhuman Endurance

Able to sense demons

Regeneration

Expert Martial Artist

Excellent Strategist

Peak Human Durability

Great Intelligence

Precognition

Reality warping

Feats

Brought a house down along with Spike

Took hits from Glory, who brought down a large part of a warehouse by stomping on the floor, gets thrown through walls with no lasting damage

Casually lifts steel girders and once heaved up a metal portcullis single-handedly

She and Spike were only slightly bruised after bringing a house down

Was only shaken up after getting hit with a lethal jolt of electricity

Manages to outrun a bullet, even after giving it a head start

Sends the soldier Riley, flying across the room only for Buffy to say she was holding back on him

With eyes closed, blocks sword from Angelus

Got hit in the back by a sledgehammer (also stabbed in stomach), and getting up just fine moments later, and she was able to keep up with a speeding bus despite being stabbed in the gut.

Getting sent flying by the Goddess Glory after she got her ass whooped, get's up moments later just fine

Defeated multiple reality warping Gods, demons and vampires

Caused the tears in several different realities

Can send large opponents flying and punch into them

Weakness

Despite her regeneration, Buffy is not invulnerable and she can still be harmed by bullets

Can die from excessive wounds

Poor resistance to spells

Cannot use guns

Fight

Previously in what if battles

Buffy waves her hand, tearing a portal in the landscape before speeding towards Sam.

Sam chokes in shock as Buffy wrapped her hands around his throat tightly.

As Sam gasps and wheezes, Buffy said to him.

Buffy: You want to send me to hell huh? Sorry. But you can go there yourself.

Buffy throws Sam into the portal, listening as Sam screams in fear.

The portal closes and the night immediately returns to it's dark tranquility.

Buffy sighs to herself and she remarks.

Buffy: Man. I could use a drink.

With that, Buffy left the the cemetery to find a bar.

Now

Dean Winchester stares at the corpse of his brother, horrified at the sight.

Grieve-strickened by the loss, Dean's blood began to boil.

Dean narrows his eyes and he vows.

Dean: I promise you Sam, I will make that girl pay for what she did to you.

Dean turns around and he began making his way towards the bar.

Bar

Buffy sat alone in the bar, sipping her drink quietly.

She watches as Pinkie Pie drags a drunken Deadpool out of the bar.

As she sips her drink, all of a sudden, a tall young man enters the bar.

The man suddenly turns to Buffy and he said.

Dean: You....

Buffy widens her eyes in shock as Dean suddenly whips out a hand gun.

Buffy jumps back up and she flips up the table with a single kick before sliding behind the table.

The bullets tore through the wood, causing Buffy to wince as she listens to the sound of wood crackening.

Buffy turns around and she throws a kick, sending the table flying towards Dean.

Dean grunts in pain as the table slams into him, sending him flying backwards.

Buffy stood up and she shouts at Dean.

Buffy: Dude! What's your problem?!

Dean pushes himself up and he shouts hatefully at her.

Dean: You killed my brother!

Buffy widens her eyes in shock as it suddenly dawns on her.

Buffy: Oh God....

Dean whips out his handgun and he opens fire at her.

Buffy sprints through the bar, dodging every bullet in her tracks.

Buffy swerves aside before throwing a kick right into Dean's face, sending him flying back.

Dean grunts as he slams into a shelf, destroying it in the process.

Buffy stares at him and she said.

Buffy: Look, I really take no pleasure in killing your brother so please, just forget this. I do not want to be forced to take another life.

Dean brandishes his Demon-Killing Knife and he angrily shouts at her.

Dean: Liar!

Dean swung his Demon-Killing Knife at her, forcing Buffy to move back.

Buffy dodges the blows before throwing a punch right into Dean's face, sending him flying.

Dean screams in agony as he was sent flying right through the wall, shattering the wood.

Dean grunts as he slams backfirst into a tree before collapsing onto the ground.

Buffy jumps out and she began approaching Dean.

Dean pushes himself up, using the tree as a support.

Dean coughs out in pain and he questions in disbelief.

Dean: Impossible! How is she that strong?!

Buffy looks at him and she said.

Buffy: Surrender.

However, Dean shook his head and he said.

Dean: No. I won't!

A Mark began forming on his on his arm and it began glowing.

A powerful energy began surging through Dean, increasing his powers simultaneously.

Buffy widens her eyes in shock as Dean lets out a loud scream, unleashing a powerful aura, sending her flying back.

Buffy screams as she slams backfirst into a tree before sliding down.

Buffy stares at Dean with her eyes wide open.

Horrified, Buffy exclaims.

Buffy: That power.....it's so....powerful....

Buffy picks up a sharp splinter on the ground and she sprints towards Dean.

Dean simply stood his ground as Buffy slams the splinter into his chest.

But to her horror, Dean throws one powerful punch, sending Buffy tumbling back.

Dean grabs the splinter and he rips it out of his chest before tossing it aside uselessly.

Buffy looks up and her eyes widens in intrigue as Dean's wounds began closing, healing from the damage.

Buffy remarks to him.

Buffy: Interesting. You're regeneration is similiar with mine.

Dean compliments her.

Dean: I've got to admit, I now see how you are able to kill my brother. You're way stronger than you look.

Dean narrows his eyes hatefully and he continues.

Dean: But.....

Without warning, Dean waves up his hand, causing Buffy to suddenly fly up into the air.

Buffy thrashes her legs in the air and she questions in shock.

Buffy: Whu...what is this?!

Dean said to her.

Dean: For what you did to my brother, you're gonna die!

Dean pulls his hand back, sending Buffy flying towards him at lightning quick speed.

As Buffy flew close enough, Dean whips out his Hand Gun and he opens fire at her, causing Buffy to scream in pain.

Dean attacks Buffy with a combination of punches and kicks before whipping out his knife and slashing her repeatly.

Dean throws one powerful kick, sending Buffy flying back.

Buffy grunts as she tumbles back before collapsing onto the ground.

Dean turns around and he began using his magic, creating a banishing portal.

Dean turns to face Buffy and he said.

Dean: You're going to hell.

However, before Dean could even act, all of a sudden, Buffy suddenly looks up and she waves her hands.

All of a sudden, the portal suddenly closes, causing Dean to widen his eyes in horror.

Dean: What?!

Buffy stood up and she began walking towards Dean.

Dean watches in horror as Buffy's wounds began closing up, healing up the damage.

Buffy looks at the Mark on Dean's arm and she said.

Buffy: Your powers comes from the Mark. Let's see what happens if I remove it.

As Buffy stares at the Mark, all of a sudden, the Mark suddenly dissolves, causing Dean to grab his arm in shock.

Horrified, Dean looks at his hands and he said.

Dean: My....my powers. They're gone.

Buffy nods and she questions.

Buffy: You want to see your brother? Then you can go and join him.

Not willing to die, Dean screams out in anger and he charges forward.

Buffy simply dodges as Dean swung his Demon-Killing Knife at her.

Buffy throws one powerful punch, sending Dean tumbling back.

As Dean pushes himself up, all of a sudden, he felt something sharp pierce through his chest, causing him to scream in pain.

Blood began spilling from his wound and Dean coughs out blood.

Dean looks back and he saw Buffy standing behind him, holding a knife.

Dean questions in shock as he felt his consciousness slip.

Dean: What....are you?

Buffy answers.

Buffy: I'm Buffy, the Vampire Slayer!

Buffy screams as she swung her blade upwards, slicing Dean's upperbody into two.

Dean screams in pain as he felt his entire body split into two, spilling blood everywhere.

Dean collapses onto the ground, dead as blood began pooling underneath him.

Buffy stares at Dean's dead body and she apologizes to him.

Buffy: I'm really sorry for this. Tell you what, you can still see your brother.

Buffy snaps her fingers and all of a sudden, Dean's body was teleported away.

Elsewhere

Beerus, the God of Destruction of the 7th Universe and his Angel attendant Whis stood back as they stare at Sam's corpse.

However, Sam's body suddenly disappears just as Beerus and Whis stares at it in shock.

Confused, Beerus questions.

Beerus: What was that Whis?

Whis simply shrug and he answers.

Whis: I do not have any idea Lord Beerus.

Beerus sighs and he remarks.

Beerus: Geez, things have been weird ever since I killed that God back there. Whis, take me home.

Whis: As you wish Lord Beerus.

Whis taps his staff onto the ground and almost immediately, a purple light flashes onto the two before they got teleported away.

Ginger Town

Dean opened his eyes and he looks around.

Where is he? He could have sworn that the girl has sliced him into half but what was he doing here? How is he still alive?

Dean suddenly felt someone tap him by the shoulder and he heard a familiar voice saying.

???: Hey Dean, where am I? What are you doing here?

Dean turns around and his eyes widens in disbelief.

Dean: Sam?! But how? I thought you are dead!

Sam nods and he agrees.

Sam: Yeah. That's what I thought too.

Dean said.

Dean: I remembered I died too but how are we in the world of the living?

Sam stares the horizon and he said.

Sam: Maybe it must be the girl.

Dean remembers Buffy's words and he nods.

Dean: Yeah. I guess you're right.

Dean stares at the horizon and he silently thanked Buffy.

Elsewhere

Buffy looks back at the forest before turning away and walking back to her home.

KO!

The winner is

Buffy Summers

Advantages and disadvantages

Dean Winchester

Smarter

More skilled with weapons

Magic gave him an edge

Physically weaker

Mark of Cain can be removed

Without the Mark, Dean is powerless

Buffy Summers

Stronger

Faster

Tougher

More powerful

Not a strategist

Still weak against normal weapons

Weak against magic

Victory quote:

Buffy: What can I say? I failed the written.

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