All Your Base Are Belong To HerA Fanfic by Dreamsmith that crosses over (Literally!) from Buffy the Vampire Slayer to Stargate SG:1, 'All Your Base Are Belong To Her' is a Dawn-centric story. In this version of things, Buffy stays dead following the events of the Season Five finale, while Dawn discovers that the ritual atop the tower has left her with some sliver of her 'Keyness' still active—namely, she can 'unlock' anything that can be unlocked. Two years pass, during which she deals with her rage and despair over her sister's loss by stealing everything within reach. Eventually Willow becomes fed up with this behavior, and attempts to mystically bind Dawn's powers. Things go awry, and Dawn is accidentally exiled to the Between, the space between dimensions. From there she manages to make her way back to Earth... but it isn't her Earth. Also, because she slips back into the material world in a location that is specifically designed to facilitate the passage of living beings via wormholes, Dawn finds herself standing within a large metal ring... on the deepest level of America's most secure military installation. Needless to say, the military personnel she encounters are not amused.
All Your Base Are Belong to Us: The story kicks off with Dawn accidentally slipping through dimensions (While under a great deal of stress), only to reemerge in an alternate world through Earth's Stargate. The unexpected appearance of a stranger in the very heart of the USAF's most secure facilility goes over about as well as you would expect. Chapter Two details Dawn's efforts to escape the base while being pursued by every Airman in the Mountain.
The Brainless Beauty: While it's a bit harsh to call her 'brainless', Dawn doesn't exactly come off as the sharpest knife in the drawer, either. She has moments of cleverness, and can definitely function well under pressure, but in general she seems to fit the stereotype of a girl who relies heavily on her beauty (and superpowers) to get her out of trouble, rather than her wits.
Bratty Teenage Daughter: Dawn's personality, thanks to not having Buffy around, plus over two years of effectively running wild in her universe and stealing anything and everything that wasn't nailed down.
Classy Cat-Burglar: How Dawn sees herself. Whether anyone else views her that way is up for debate.
Distracted by My Own Sexy: Dawn readily admits to being quite vain, and at one point happily lists her favorite things about her appearance (effectively everything about her appearance): beautiful face, pale, perfect skin, long, lovely hair, a killer body, and gorgeous blue-green eyes. While stealing armloads of clothes and jewelry from a high-end boutique which is well-equipped with mirrors, she has trouble keeping her eyes off her reflection—though to be fair this was partly because of her fascination with her newly-acquired Glowing Eyes.
Distracted by the Sexy: A female to male instance, as Dawn immediately focuses her attention on Dr. Daniel Jackson. Various other random instances as characters can't help but notice that Dawn herself is quite attractive.
Even the Girls Want Her: At some point before the story begins, Dawn and Faith seem to have been in a relationship. Granted, this is Faith we're talking about.
Fragile Speedster: Dawn embodies this trope despite not actually having super speed. Her extreme mobility is derived via Teleportation, but in all other respects she's still a slender, untrained, and extremely unathletic young woman who is in serious trouble if anyone manages to land a solid hit.
Glowing Eyes: A side-effect of her connection to the Stargate Network; only visible when she's actively pulling power from the Gate's reserves.
How Do I Shot Web?: Upon arrival in the universe inhabited by SG:1, Dawn quickly discovers that being the Key allows her to interface with the Stargate network on a fundamental level. She only learns what that means through a process of trial and error... all while being pursued through the entire Cheyenne Mountain complex by large numbers of irate and heavily-armed Airmen.
Men Are Strong, Women Are Pretty: Dawn frequently wishes for a strong protector to, well, protect her, from the various threats and perils she encounters in the Stargate Universe. Perhaps excusable given how she was conditioned to expect this in her home reality, with first Buffy, then Spike, and eventually Faith all willingly devoting themselves to keeping her safe. With a history of such powerful champions lining up for the privilege of defending her, and with no physical powers of her own, Dawn is quite content to let the fighters do the fighting. If danger threatens while a suitable champion is unavailable, her preferred tactic is to run away and/or hide.
Somewhat averted, on occasion, by her willingness to rescue herself from dire situations, so long as an actual fight isn't required to do so.
Non-Action Guy: Dawn pretty much falls somewhere between this, and The Chick. She's not any kind of fighter, she doesn't want to be involved in 'adventures', but when bad things happen to her, she does her best to get through them, rather than whine and cry about it. (Well, she does whine and cry about it, but only after the danger has passed).
Not So Different: While Dawn doesn't realize it, the descriptions of her self-centered vanity and her general brattiness means that she ends up coming off very similarly to Glory.
Wellll... other than the fact that while Dawn is selfish, self-absorbed, bratty, and only interested in pleasing herself and indulging her every whim in a basically victim-free way, Glory is all those things, and is additionally a raving, cruel, omnicidal maniac who's not only willing to torture and kill anyone who even slightly inconveniences her, but enjoys doing it. So, while they share a few traits, Glory is light-years worse in the ways that really matter.
Portal Network: Obviously, given that it takes place in the Stargate universe. Dawn, however, quickly discovers that the network seems to interlock with her Key abilities in some very odd ways....
Proud Beauty: She's gorgeous and she knows it; Dawn happily lives this trope, both by her actions and in her inner monologue.
Screw the Rules, I Have Supernatural Powers!: Dawn again, to an Epic degree. She was bad enough back in the Buffyverse, where a small remnant of her awakened Key abilities remained active even after Buffy sacrificed herself. When she enters SG:1's universe, however, and puzzles out her brand new Teleportation abilities, she lives this trope with joyful abandon. Basically, if there is something shiny, fashionable or valuable lying unattended anywhere in Colorado, she'll get around to taking it eventually.
A true klepto, she continues to steal even after accumulating enough money to buy anything might possibly want or need.