Post season 7: Buffy ends up at Xavier's school (whether it's in Buffy's native universe or not is up to the author). At some point Rogue accidentally touches Buffy. A previously unknown safety kicks in. The magic that creates the slayer prevents Rogue (or anyone) from taking her slayer power and instead, Rogue’s power is sucked into Buffy.

Requirements:

Angst, and more angst, at least in the beginning. Resentment and distance from either the X-men side or the Scooby side.

Rogue is torn, happy to be rid of her “power” but sorry for what it cost Buffy. Rogu...

Dawn tries to recreate Ethan's Halloween spell to fight the First. It blows up and she finds herself crashing through a wall and into the Marvel universe. Girl-shaped Keys and chaos magic unmixy? Maybe. Possibly. Just a little.

Must Have:
Dawn's Keyness and the backlash from the chaos magic somehow translating into superpowers in the Marvel universe.
Dawn going from Damsel in Distress to Competent Superhero over the course of the story.
Dawn meeting with various Marvel Superheroes/Villains and Superhero/Villain Teams, trying to put together a team/group to help fight the...

Okay, we know that Buffy has the hankering for the undead so why not make it a yummy match? I love the Wesley Snipes 'Blade' even if he is a bit broody. Maybe find a way for her to pull that stick out of his...

Timeline: BtVS - Not sure which season, but should at least be post Season 3 before they 'get together' and go off into the sunRISE. Blade - Don't know, but see #2 Do's.

Do's:
1. Have some wicked sparring between them, especially with weapons.
2. Keep Blade's Whistler alive. I love him. (It would be an added bonus for the two Whistlers to meet)
3. Have a sm...

I was reading MagnusXXN's unfinished Buffy/X-men crossover Something Wicked This Way Comes and I started wondering why there aren't more fics like that. The Buffy/X-men Halloween fics generally do not take place in the X-men 'verse. I want one that does.

Ethan copies the uniform of a mutant and sells it. The person who where the costume keeps the powers of whoever they dressed as.

Specifics:
The person who wears it should be a major character such as Xander, Joyce Summers, or Giles. Another possibility is Warren if you want a mutant Big Bad.
Buffy is already the Slay...

Have 1-5 Character(s) from X-men crossover to the Buffyverse. A consequence of the specific type of portal or method of crossing to another dimension/reality is that the character(s) are de-aged. The X-men characters must end up 4-9 years old and be adopted or looked after by a character or characters from the Buffyverse. Simply being in the Buffyverse carries consequences as well: the kids powers are weakened considerably, though if they went back to their home universe they'd increase to normal levels and the powers of natives of the Buffyverse would increase to unnaturally high levels if th...

The Mandrill is a Marvel Comics villain -- a misogynist who looks like, well, a mandrill, but who emits pheromones that make any woman over puberty fall madly in love with him and want to do anything he says. This includes superheroines such as the Valkyrie, so powers don't give you the willpower to resist. Neither does knowledge of this ability and a determination to fight it.

He has several times used his abilities to garner himself an army of women which he has attempted to use to take over the US, and has been defeated, most commonly by the Defenders, but a couple of times by Shan...

Xander Childhood-Challenge
Ironman-Movieverse

When Xander Harris was deaged back into babyhood by Willow's latest mess, he fell back under Halfrek's domain. When Dawn wished Xander to have other parents this time around she could garant it. But despite everything, Halfrek is a demon and her wishes have catches. She can't give him a perfect family or even a perfect dad, it doesn't work that way. But she can give him a parent that has the resources and the need to become a good parent.

When Tony Stark got home after being abducted in Afghanistan Pepper has a unexpected surp...

Crossover with Ironman 2008. Not sure if this should go in Movies or Comics category.

Tony Stark is Faith's father.

Movieverse Tony Stark looks a little too young to be the father of a late season Faith, so for this story Faith should begin when she is between the ages of 6 and 9. Yes, it's a kiddie Faith fic.

I'll leave it up to the author to decide how he finds out about her. The only requirement of the discovery of Faith is that Faith's mother is dead or dies during the first part of the story, and Tony is left to care for Faith. How would he deal with it? Since t...

The X-Mansion has been destroyed several times throughout it's career. Often, it has been rebuilt with funding from outside sources. What if one of the sources (such as the Hellfire Club or the U.S. military) paid for the complete rebuilding of 'Xavier's School for the Gifted', on the condition that it be moved to an active Hellmouth?

You could go for a complete AU, where the first official school was built with this in mind, or set at any point in X-Men history, preferably at a point where either the mansion's (such as Bastion's dissection of it in Zero Tolerance) or the team's (su...

Crossover with: Marvel Comics
Timeline: Any
Type: Xander's Real Family Challenge

Xander knew his mother had bad taste, but he vastly underestimated HOW BAD her taste in men really was. But hey, after you look past the horrible skin, constant banter, insanity, homicidal leanings, and off color pop culture references he's really not that bad.... right?

Write a fanfic where Xander finds out his Dad is really the mercenary for hire Deadpool.

Bonus points if Xander's mom says she slept with Wade because Wade made himself look like Harrison Ford.

I'd love to see what would happen if Venom or another member of the symbiotic species that plagues Spiderman tried to bond with Illyria.

The spores that make up Illyria in her 'resting' state don't seem to be that choosy and they do retain unusual traits from their 'host'. I'd like to see those spores try to consume Venom or another symbiote... Either attacking the merged human/symbiote pair or attacking only the symbiote itself. You never know what that Knox could get up to... ;)

Alright this is a strange brainstorm but just go with me, ok?

Hank leaves his wife and child because of a failed marriage. What if Summers was Joyce's maiden name? What if McCoy was her married name? What if the reason he left was because his [Hank McCoy's] mutation suddenly surfaced and he couldn't face his family? OR maybe even because Joyce couldn't deal with it?

So far as I can recall, Hank McCoy's mutation surfaced late in his life. He was a scientist, a doctor, and a mutant... wouldn't it be interesting for Buffy and Dawn to be his kids? I'm seeing blue hair in th...

While doing slaying research Xander came across a story about two metal demons that fell from the sky. One demon was in search of a magical item that could be used to rule all. While the other demon, an Atobo, was here to stop the other metal demon and return the magical item to it's true home.

With the aid of the Slayer the Atobo was able to destroy the other demon but not without it's own lost of life.

In the book Xander is reading he also find woodcarving made of the Atobo and the symbol it wears.

When Xander visit Ethan's, he fined out he's out of luck as the l...

I've seen a lot of crossovers with the X-men where Buffy was related to one of them, but only one where she is related to somebody who isn't a member of the X-men.

I want a story where Buffy is the child of Victor Creed and Joyce but she is adopted by Hank Summers who is Scott's uncle.
It is after killing Angel but instead of going to LA she goes to New York.
Where she discovers that she is also mutant. Her powers has to be the same as father and maybe some other powers.

The professor and Magneto are both looking for her, it's your choice who finds her first.
...

This is a challenge for YAHF.

It has to be a Buffy/Willow pairing where Buffy dresses as Scott Summers and Willow is Jean Grey.
They have to learn how to use their powers maybe Buffy has to wear the same glasses as Scott.

They can ask Xander for help to learn to control their powers because he read the comics.

You can make it as long as you will but I hope of course it will be a long story