Azula is broken out of the asylum by her remaining supporters. She finds them stupid and blind, so she kills them. She sails onto the ocean and passes through a portal to another world. First world is Fog Hill of the Five Elements, then it will go towards Naruto, but I want her to master martial arts and firebending before going into the ninja world. Character dev and wolrdbuilding

Tanjiro, Zenitsu, Inosuke, and Nezuko wake up in the world of Avatar: The Last Airbender.

Aang teleports to the world of Fodlon and Fire Emblem.

Alone, wandering through the cosmos, the last of his kind, Vegeta finds himself not only marooned on a foreign planet rather similar to the one he had abandoned, but now he has been mysteriously robbed of his full power, stuck with a gang of idiotic children and their painfully cliche adventure to save the world; Unfortunately, his anguish has only begun. Post-Perfect Cell arc

The Doctor and the Avatar Book 1: As the Doctor and his companions try to find a way back to 1963, they land on a world where the four elements are bendable. But after making some new friends, the travelers must team up with another gang to save a new friend and start to end a century of oppression.

A mysterious group breaks out Ozai and Azula from their prison. They head over to an island off the south coast of the Fire Nation, and the Gaang is right on their trail. Arriving on the island, there resides an abandoned resort town, where things are not what they seem when they enter it. When they enter "Silent Hills"...there's no turning back. SH/ATLA fusion. M rated for themes.

vatu in a last ditch effort to win goes back in time to change history so rava changes history so a certain ninjas home is a sealed off nation so the new avatar will have help

They thought the war was over with the defeat of the Fire Lord. However the powers that be, looking from outside decided that their struggle was only just beginning. Former Fire Lord Ozai, now made into a demon of pure fire, seeks not to rule a world that is reborn from the ashes but to burn it down to spite those who thwarted him, starting with the Avatar and his son.

(Part of the Assassin's Creed series) Dan gets a flashback back to the life of his ancestor, an assassin named Arzon. He lives the life of a Fire Nation nobleman who follows the way of the Assassin Brotherhood for a path of justice during the Hundred Year War. (Rated M for death, obviously)

After her second death, Tanya is once again reincarnated into a world at war. With destiny forcing her down the path of military service once again, Tanya must protect new homeland from the threats that would seek to destroy it: the stubborn Earth Kingdom, conniving Water Tribes, and most of all that dangerous madman The Avatar. For the glory of the Fire Nation!

So I read this fanfic about Jade and John going to different worlds, and it only lasted for one world, and it was like mildly fanfic-good, and so I was like: "Man dude this is the shit, I gotta get myself more of this-" and then there wasn't more of that shit, and so here I am. I won't be continuing where that last one left off, but I will be starting this one in that general area.

One-shot ATLA AU in MHA "...After that life-changing fieldtrip, BAM! Here you are!" "Toph... Please include that it was years before we had our son." "I can't see the problem, Zuko." "You can't see at all." Izuku knows his parents are imperfect. But they are the strongest people he knows. They're his hero. So maybe, despite his imperfection, he can be one too. (Platonic ZukoXToph)

In this story, a few years have passed in the Bakugan Game; Champions of Vestroia. The main characters and their greatest rival are sent to the Avatar's world during one of their battles. Thanks to them, an ancient and secret side of the Avatar and the world has been unleashed.

America and Canada wake up in a strange land with no idea how they got there. The war is making it hard to find a way home, but at least they're not navigating it alone. Rated T. NO ROMANCE!

Darkness approaches and Middle Earth is in dire need of the Avatar. But the past cast deep wounds and the new Avatar is up for a challenge. Luckily she has the friendship of a hobbit, the company of a pack of dwarves and perhaps even the love of an elvenlord to help her.

Naruto and Will are now in the Four Nations, ready to learn their elements and help the Avatar end the war. Recommend that you read "Meridian Jinchuriki" first (by pyrohelixdrago)

ATLA Star Wars crossover. First story! Wish me luck lol. Also, this story will take place during Season 5 and will extend all the way until Episode 6, Return of the Jedi. Hope you guys enjoy. Please leave thoughtful comments and critiques if any!

To Zuko's great relief, his new family were not part of a cult. Instead they seemed to be rather normal people – they were well-mannered, cultured, fire breathing people who were very assured of their own superiority, and had a family history of insanity. Zuko had never felt more at home. AU Zuko-is-Itachi.

What if Iroh had a second son? One that he believes is dead, but was really changed into something else, a demon. What will happen if he finds out, and how are both going to cope with it? And what about Zuko's relationship to this cousin of his? I don't have the exact story outline yet, I just found this scenario interesting and let's see what happens. :)

This is only a short trailer to what I have planned in the future. Another unique crossover that came to mind, but will work on carefully. There may be a hint of violence, gore, romance, slice of life, an epic adventure.

Nick Fury is hoping for a miracle. He gets a 12-year-old flying monk. Meanwhile, Captain Steve Rogers is being accosted by two teenagers in parkas who want to know if he's the "Avatar" - whatever that is.

After sacrificing her life for Zuko, Katara is sent to a new world where Heroes and Villains walk among the people. Upon gaining help from interesting individuals and going to the top Hero school in the country of Japan, Katara will live the life of being a Hero as well as waiting for when she can go home...but does she want to? [Cover by astrocitoart on Tumblr!]

In the wake of order 66 and the purge of the Jedi,two Jedi padawans crash land on the world of avatar the last airbender. (Ty lee x OC)

Cross-posted from Ao3. Attack on Titan x Avatar the Last Airbender crossover, Eren lives. As an alive and grief-stricken Eren attempts to seek atonement for his actions and sins, the arising calamity of bending begins to come to light on the island of Paradis as a guiding hand is always present for Eren's necessitating aid through his internal struggles.

An AU where Leo is a teenage Earth bender living in an Earth village Orphanage with his friend Donnie. After recovering from being terribly sick, he soon finds out that the illness taken his sight. It might be temporary, but he's going to make sure that the people he cares about are safe. 2012 and some 2003 tmnt characters are used in this.