Legion of Super Heroes Crossovers
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Green Legionnaire by JP-Rider reviews
After chasing down Warp, Beast Boy ends up in the 31st Century where he meets the Legion of Superheroes. With no way back he must adjust to the life in the future and find a way back home. BBxHarem.
Crossover - Teen Titans & Legion of Super Heroes - Rated: T - English - Romance/Sci-Fi - Chapters: 4 - Words: 14,993 - Reviews: 15 - Favs: 38 - Follows: 46 - Updated: 4/17 - Published: 3/5 - [Beast Boy, Saturn Girl, Dream Girl, Shrinking Violet]
Legion Of Ultimate Superheroes by ActionBoy 87 reviews
When Ben loses everything and everyone he loved to Vilgax, Professor Paradox sends the Omnitrix wielder to the 31st century to live in New Metropolis; where he will live, train, and fight with other teenage heroes with special powers and abilities: The Legion Of Superheroes. (With the assistance of Codecrash)
Crossover - Ben 10 & Legion of Super Heroes - Rated: T - English - Adventure/Sci-Fi - Chapters: 11 - Words: 91,063 - Reviews: 174 - Favs: 81 - Follows: 79 - Updated: 4/14 - Published: 11/22/2014 - [Ben T., Emerald Empress] Superman
Carol for a Friend by Brightpath2
It's the first Christmas after Brainy leaves, and Garth decides it's time to spruce things up around the HQ. With a prank! And of course the first victim- ahem, we mean, recipient- of his wonderful Christmas gift has to be Brainiac 5! Join the Legionaries as they carol to their absent friend. Merry Christmas and Happy Holidays to everyone out there! -Cartoonverse
Crossover - Legion of Super Heroes & Legion of Super Heroes - Rated: K - English - Humor/Friendship - Chapters: 1 - Words: 2,655 - Published: 12/25/2014
God Still Loves, But Man Still Kills by Spectrum51 reviews
When the X men find themselves in the 31st Century, they find others like them in the Legion of Superheroes. But man is still killing, and when the Sentinels hear the X men are here, they hunt them down with the Legion. But the Legion and the X men have survived, are surviving, and will continue to survive. Contains OC.
Crossover - X-Men & Legion of Super Heroes - Rated: K+ - English - Adventure - Chapters: 1 - Words: 431 - Reviews: 1 - Published: 11/2/2014
Time to Time by DuskMuse711
Tao Sander's always put her family before herself so when she suddenly finds herself thrown into the world of heroes, she'll do everything she can to get home but what happens when she finds herself having feelings towards a certain bird? Will she finally put herself first? Rated T for later. RobinXOC Story begins in the the 31st century and will travel to the 21st.
Crossover - Legion of Super Heroes & Young Justice - Rated: T - English - Adventure/Romance - Chapters: 4 - Words: 5,180 - Favs: 2 - Follows: 3 - Updated: 10/22/2014 - Published: 8/10/2014 - Brainiac 5/Brainiac 5.1, OC, Richard G./Robin
The Rescue by Spectrum51
When Brainy is kidnapped by his evil, reincarnated ancestor, the Legion must turn to four heroes for help: Nightwing, Robin, Batgirl, and SPectrum51. Wow, what a terrible summary, just like a movie trailer.
Crossover - Batman the Animated Series & Legion of Super Heroes - Rated: K+ - English - Chapters: 1 - Words: 354 - Favs: 2 - Follows: 1 - Published: 8/30/2014 - Barbara G., Dick G., Timothy D., Brainiac 5/Brainiac 5.1
Stay With Me by Hadassa J reviews
The Legionnaires embark on a special mission through time to stop Joker's plot in the episode 'Wild Cards'. Timber Wolf forms a bond with Ace of Clubs, understanding the pain and betrayal of a childhood robbed and replaced by experimentation. Hurt/Comfort, Romance, and a touch of Humor.
Crossover - Justice League & Legion of Super Heroes - Rated: T - English - Hurt/Comfort/Romance - Chapters: 4 - Words: 8,938 - Reviews: 4 - Favs: 5 - Follows: 2 - Updated: 8/11/2014 - Published: 8/6/2014 - Ace of Clubs, Phantom Girl, Timber Wolf - Complete
Future to Past by AnimeGirl 144 reviews
Set pre-Denial for Young Justice. Just a little over a month after Superman returns to his timeline, Brainy is in his lab, messing with a time bubble, something he shouldn't be doing. What happens when it malfunctions and sends him to a time where the name Brainiac can get you killed?
Crossover - Legion of Super Heroes & Young Justice - Rated: K+ - English - Friendship - Chapters: 8 - Words: 22,975 - Reviews: 25 - Favs: 54 - Follows: 55 - Updated: 6/5/2014 - Published: 9/12/2013 - Brainiac 5/Brainiac 5.1, Conner K./Superboy, Richard G./Robin - Complete
Phantom Legionnaire by Neeko96 reviews
It's just another lousy set of tryouts for the Legionnaires and Lightning Lad's exasperated, but when one audition turns into a monsters weight in trouble the excitement kicks into overdrive. Unable to deal any serious damage to the monster the Legionnaires turn to see a mysterious boy take it down with ease. Who is he? And more importantly what was that? -
Crossover - Danny Phantom & Legion of Super Heroes - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 6 - Words: 12,741 - Reviews: 14 - Favs: 28 - Follows: 14 - Updated: 12/23/2013 - Published: 12/18/2013 - Danny F., Frostbite, Lightning Lad, Phantom Girl - Complete
Brainy Best Friends Forever by PriestessOfNox reviews
The Sailor Scouts have accidentally transported themselves to the LoSH universe. Brainiac Five and Sailor Mercury soon develop a friendship followed by the others. SLASH
Crossover - Sailor Moon & Legion of Super Heroes - Rated: T - English - Chapters: 1 - Words: 2,088 - Reviews: 1 - Favs: 3 - Published: 9/27/2013 - Mamoru C./Darien S./Tuxedo Kamen, Inner Senshi/Inner Scouts, Brainiac 5/Brainiac 5.1, Superman - Complete
Time Is A Brainiac's Best Friend by The Shiax Artist reviews
After Brainiac5 becomes human he finds that living with himself is a lot harder to do than he thought. When he a few other Legionnaires escape to the past, things go from bad to worse. Contains yaoi Shounen-ai between SxB5 This is a rewrite of my old one. Brainiac5's Time in the Past, now deleted. This takes place after Season two of LoSH and YJI.
Crossover - Legion of Super Heroes & Young Justice - Rated: T - English - Hurt/Comfort/Drama - Chapters: 4 - Words: 11,562 - Reviews: 14 - Favs: 16 - Follows: 21 - Updated: 9/27/2013 - Published: 9/5/2012 - Saturn Girl, Brainiac 5/Brainiac 5.1, Clark K./Superman
Legion TV by PriestessOfNox reviews
SLASH. Crossover with the Anime "Tiger and Bunny" with Superman in the place of Wild Tiger.
Crossover - Legion of Super Heroes & Tiger & Bunny/タイガー&バニー - Rated: T - English - Chapters: 2 - Words: 1,348 - Reviews: 1 - Favs: 1 - Updated: 9/26/2013 - Published: 9/20/2013 - Brainiac 5/Brainiac 5.1, Superman - Complete
Legion of Serenity by PriestessOfNox
Sept 24: Obsession Tuesday: The couples obsession? Crossover with your currant obsession? Obsess away! Legion of Superheroes crossed over with Firefly. Pre-Slash.
Crossover - Firefly & Legion of Super Heroes - Rated: T - English - Chapters: 1 - Words: 1,123 - Favs: 1 - Follows: 1 - Published: 9/24/2013 - Brainiac 5/Brainiac 5.1, Superman - Complete
Cousin? by PriestessOfNox reviews
SLASH! Clark and Brainy honeymoon in Hawaii and meet someone unexpected.
Crossover - Lilo & Stitch & Legion of Super Heroes - Rated: T - English - Chapters: 1 - Words: 799 - Reviews: 2 - Favs: 9 - Follows: 4 - Published: 9/17/2013 - 626/Stitch, Lilo P., Brainiac 5/Brainiac 5.1, Superman - Complete
Not a Pokemon! by PriestessOfNox reviews
What happens when Brainiac Five ends up in the world of Pocket Monsters and one of the creatures there starts to follow him around? Possibly one of the most random crossovers ever... Possible slash if continued.
Crossover - Pokémon & Legion of Super Heroes - Rated: T - English - Chapters: 2 - Words: 1,984 - Reviews: 14 - Favs: 8 - Follows: 11 - Updated: 9/11/2013 - Published: 3/7/2011
Strange Visits by The Shiax Artist reviews
Clark Kent was expecting to have a normal day working at the Daily Planet and maybe the random villain, what he wasn't expecting was an old friend from the future popping back into his life in the strangest of fashions. (Minor B5xS)
Crossover - Justice League & Legion of Super Heroes - Rated: T - English - Hurt/Comfort/Friendship - Chapters: 1 - Words: 1,535 - Reviews: 3 - Favs: 4 - Follows: 9 - Published: 9/2/2013 - Clark K./Kal-El/Superman, Bruce W./Batman, J'onn J./Martian Manhunter, Brainiac 5/Brainiac 5.1
Christmas on the Enterprise by PriestessOfNox reviews
To strengthen the ties between the Legion and Star Fleet they are assigned to work together on the new Vulcan colony during the Christmas season. Shall have references to new ST movie and TOS. Contains SLASH. Sexual themes may develope as story progresses
Crossover - Legion of Super Heroes & Star Trek: 2009 - Rated: T - English - Chapters: 24 - Words: 35,411 - Reviews: 77 - Favs: 23 - Follows: 24 - Updated: 12/22/2012 - Published: 12/5/2009
Ice by miss.iris94 reviews
maplesnow edited this for me, she's amazing! i had this cross over since middle schoo, i hope you enjoy it!
Crossover - Life and Times of Juniper Lee & Legion of Super Heroes - Rated: T - English - Humor/Romance - Chapters: 1 - Words: 1,234 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 12/20/2012 - Lila, Timber Wolf
Two Brains one Century by Ze Great Camicazi reviews
CONTAINS OC. Ultimate Girl my OC falls into a century and is fried by the walls of the time buble. The Legion knows her body will regenerate itself but what happens when the FBI finds her body first?
Crossover - Bones & Legion of Super Heroes - Rated: T - English - Adventure/Drama - Chapters: 3 - Words: 3,494 - Reviews: 4 - Favs: 1 - Follows: 4 - Updated: 7/20/2012 - Published: 5/22/2012 - T. Brennan, Brainiac 5/Brainiac 5.1
The Superheroe Job by Ecchi Girl reviews
The Legion joins up with the Leverage team to save Ultimate Girl from the sadistic Brainiac 6.
Crossover - Leverage & Legion of Super Heroes - Rated: T - English - Adventure/Crime - Chapters: 1 - Words: 1,293 - Reviews: 1 - Favs: 2 - Follows: 2 - Published: 7/20/2012 - Nathan F., Brainiac 5/Brainiac 5.1
Avatar: Saving the Heart by Ecchi Girl reviews
Ultimate Girl/Lady Lujin was badly injured and she has requested that they bring her to Elementia where Korra ends up healing her. And then Lujin finds out about what's going on in her world. New project for the Legion.
Crossover - Legion of Super Heroes & Legend of Korra - Rated: T - English - Adventure/Romance - Chapters: 1 - Words: 1,165 - Reviews: 1 - Favs: 2 - Follows: 4 - Published: 6/28/2012 - Brainiac 5/Brainiac 5.1, Korra
Phantoms of the Legion by Ecchi Girl reviews
When Brainiac 5 was working out the bugs in his latest Time Bubble he accidently picked up the wrong passanger...How do Phantom Girl and Danny Phantom get along? And will he ever get back to his time?
Crossover - Danny Phantom & Legion of Super Heroes - Rated: T - English - Adventure/Hurt/Comfort - Chapters: 1 - Words: 810 - Reviews: 16 - Favs: 21 - Follows: 28 - Published: 6/15/2012 - Danny F., Phantom Girl
The Legion in Equestria by PriestessOfNox reviews
The Legion has been transported to Equestria but that's not the only thing that's different. Light slash.
Crossover - My Little Pony & Legion of Super Heroes - Rated: K+ - English - Chapters: 2 - Words: 4,589 - Reviews: 6 - Favs: 15 - Follows: 8 - Updated: 4/29/2012 - Published: 3/9/2012 - Complete
Superhero by Techbilt reviews
Superman tries to make things better with Superboy. Brainys there to help along the way. Superman/BrainIAC5 Superboy/Miss M Dick/Wally. Crossover between LOSH and YJ cartoons will also have comic and JLU influences. SLASH
Crossover - Legion of Super Heroes & Young Justice - Rated: K - English - Family - Chapters: 1 - Words: 2,492 - Reviews: 6 - Favs: 22 - Follows: 26 - Published: 3/25/2012 - Brainiac 5/Brainiac 5.1, Conner K./Superboy
Two Teams, One Era by LegionFreak reviews
When the legion goes back in time to do what they think is important in the past, but the time bubble breaks, and they're stranded in the 21st century, the justice league takes pity on them, introducing them to a superpowered co-team...
Crossover - Legion of Super Heroes & Young Justice - Rated: K+ - English - Adventure/Drama - Chapters: 3 - Words: 5,990 - Reviews: 4 - Favs: 16 - Follows: 16 - Published: 12/4/2011
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