Intro

The OmniWorld (Avatar Version) is a series of crossovers between my TFA Universe and other fanfictions and series, outside of Avatar. Each chapter is written on request, for no charge as I do it for fun. All legitimate requests will be fulfilled in time. to Make a request, send me a PM detailing what you want to happen and the length you want. 3000 words max for one chapter and max of five chapters for any one request. No lemon requests please.

Omniworld X

This chapter was written using the Original Characters Avatar Gaia and Brykus from the fan fiction, Avatar: Rise of a legend by Jokermask 18.

All original characters are used with permission. This story may contain spoilers to the aforementioned fan fiction.

This request is rated T and follows the Humor/Fantasy genre.

Chapter 1: Silver VS Gaia!

In the depths of the Omniworld, two of the most powerful beings alive, found themselves within the same pocket dimension, one of many in which the gods of the many universes are able to convene and speak with one another. This realm in particular, now housed two gods from two very similar worlds and yet their worlds were also very different.

One of these gods chose to take the form of a physically fit but aged human male, dressed in flowing gold and silver robes, decorated with stars, moons and suns. He had a long golden beard with matching hair and his shining golden eyes pierced through the hearts of mortal men. This god was Izanagi.

Speaking with him was another god, human yet inhuman in appearance. He looked like a piece of the night sky, cut out and shaped into the form of a human. His body was nothing but space and spiritual energy with tiny stars, planets and entire galaxies floating around inside it. This god was Brykus.

Their worlds were twinned with each other as most of their modern day world was identical, with only the destine few such as Korra having different lives. It was during one of their many discussions on the differences between their worlds, that they began telling each other of the greatest thing the two shared…and the thing that varied most.

The First Avatar.

"My First Avatar, Silver, created the cycle all by herself! It was a hell of an accident but in doing so, she saved a lot of people's lives! The only downside to her is that she's kind of like a little kid…she goofs around when she isn't needed but then hits the personality switch whenever trouble comes." Izanagi said, laughing as he used his god's eye to observe the woman that held the soul of Amaterasu. Back in his world, Silver was fooling around with Korra and Kyora, playing some kind of prank on Lin Beifong.

"Your Silver sounds like a firecracker! Though I do not really approve of such an important person goofing off and playing. She should be eternally vigilant like my Gaia was. Right from a little girl to the age of a thousand, she watched over my world and kept the peace." Brykus retorted. While Izanagi sounded human, Brykus spoke in a voice like a thousand people were saying something simultaneously.

"Your First Avatar may have been more reliable than Silver, but you can't deny Silver is more fun." Izanagi said, teasing his fellow god.

"Gaia could be as "fun" as any of your Avatars! She just knew the time and place for such things! Anyway, remember that my world is older than yours just as I am older than you! show some respect to your elders." Brykus snapped back. Izanagi may have been wise and noble in his own world, but he couldn't help but tease his elder god and for all Brykus' nobility and calm, Izanagi just knew how to push his buttons.

"Well, even if Gaia is the more responsible one, Silver is definitely stronger." Izanagi said with a smile, once again trying to provoke Brykus. It worked.

"What!? Are you nuts!? Gaia has the power of four elemental gods within her; your Silver only has one!" Brykus said.

"Well, why don't we test that then? We request the Omega Spirits to allow us to bring the two of them here and then have them fight. Whoever wins is the stronger First Avatar and the losing god and Avatar must bow to the winner and proclaim they are the best." The younger god offered. Brykus thought about it for a moment, but the childish smirk on Izanagi's face made the decision for him.

"Fine. But don't try and back out when Silver gets beaten." Brykus said with a sigh.

The two gods then spoke to one of the Omega Spirits, who despite being rather angry that the two gods were getting involved in such a childish dispute, agreed to satisfy their own curiosity on who the strongest one really was. And so, without any explanation or greeting, the two gods took their first Avatars and dropped them into the arena made for them in the meeting place.

"Ow! Lord Izanagi, did you have literally drop me!?" Silver complained, rubbing her sore backside.

"I have to agree…" Gaia complained, albeit more quietly than Silver. That is until she saw her long hair, flowing down her shoulders. "Wha-What the? Why is my hair white?" she asked.

"Side effect of leaving your realm. Whenever a mortal leaves their home realm, their hair turns white for a short time. It will return to normal after a few hours." Brykus informed her, appearing to stand before her.

Silver, who's hair was naturally white, didn't care much about this predicament, instead she carefully judged Gaia. She could sense an incredible level of power coming from the girl, stronger than most of the Kami she knew and possibly stronger than herself…

Gaia had a youthful but amazingly beautiful face with bright green eyes that held wisdom that her otherwise young appearance would not be thought capable of. Her body was curvaceous but looked too innocent for her age, something that men were no doubt driven mad by. Her now white hair was long and flowed freely over her shoulders and back. She was dressed in pale yellow Kimono that appeared almost white at a distance. She had a bright red and flame patterned sash tied around her waist and a light blue choker around her throat. Silver recognised it as clothing from the Spirit World.

"So, you must be a Spirit from another Realm, right?" Silver asked.

Gaia nodded. "Yes I am. My name is Avatar Gaia, the First Avatar to Lord Brykus."

Silver smiled, "I see… My name is Avatar Silver, Izanagi's First Avatar."

Now it was Gaia's turn to judge Silver. Gaia could feel the powerful energy within Silver and felt the Elementals within herself, all of them reacting to this odd new presence. Silver's hair was naturally white and reached to her shoulders. She had crystal blue eyes and wore a rather simple outfit. It was a Kimono, coloured light pink with red autumn leaves making the pattern, and a white sash holding it together. Unlike Gaia's clothing, that was long sleeved and went down to her ankles, Silver had no sleeves and the hem of her kimono only went to her knees. She also wore no footwear.

"The two of us brought you here for an important task. We want you to fight each other." Izanagi said with a small smirk.

"Okay." Silver said, not giving it a second thought. She wanted to see the power she could sense, up close and personal. Gaia was not as eager.

"I can't just fight an innocent person! I'm a spirit but she isn't! I could kill her!" Gaia complained.

"Not to worry. Silver is an immortal. The two of you can fight all you want with no danger. As a bonus, the atmosphere in this area stops about 90% of pain from being felt. You can really go as all out as you want." Brykus said. Gaia still didn't look convinced, so Silver, eager to get started, pushed her buttons a little bit.

"Don't be such a wuss! Are you scared you won't win? Scared of having to bow down to a better Avatar." Silver taunted.

Gaia growled and took a battle stance. There was no way she'd bow to someone so arrogant (Gaia hadn't realised it was just a little playful jibe to get her going, but she'd find that out later). Gaia made the first move by lifting ten large boulders out of the earth around her and throwing them, one after the other, at Silver. The Kami Avatar dodged the first three with ease, but Gaia was picking up speed and the next few were able to knock Silver around, sending her flying into the wall of the special arena.

"90% less pain or not, that still hurt. You pack a heck of a punch for someone so innocent looking." Silver said.

"Not such a wuss now am I!?" Gaia growled.

"That was just a joke to get you going!" Silver laughed. Gaia blushed a little and her stance weakened, finally giving Silver an opening. The immortal darted forward at lightning speed and generated powerful, high pressure water cannon, aiming it directly at Gaia from point blank range. Gaia was knocked all the way into the opposite wall and held her there for a few seconds before Gaia was finally able to freeze it and escape.

Silver responded by firing an alternating barrage of ice spikes and fire balls, hoping at least one would hit, but each time Gaia failed to dodge in time, she'd just make a barrier to protect herself. "Damn, she's too quick." Silver muttered. Before Silver could plan her next strike, she was hit in the gut with a fist sized rock, winding her and causing her to spit blood.

"I'm sorry for being so rough, but I don't want to lose!" Gaia said, looking a tiny bit guilty for having got in a low blow. Silver just laughed the apology off before darting forward once again. If she couldn't bend her rival into submission, she'd try a different tactic. Gaia had no way of predicting what the erratic woman would do next, but then again, few people would have imagined Silver would do what she did next…

Silver lept at the last moment, landing only a few inches short of Gaia, and delivered a devastating punch to the girl's gut, easily as hard as the rock Gaia had launched earlier.

"Gah!" Gaia yelled, stumbling backwards, winded and spitting blood.

"What the heck happened there!?" Brykus asked, looking as concerned as a man with no real face could (Izanagi judged on how quick the galaxies in his body were spinning).

"Gaia is the superior elemental bender. She is the personification of the elements in your world, but compared to Silver, her body is weak. Silver spent as much time on bending as she did on punching things, so beware her holy fists!" Izanagi bragged.

Gaia, who heard the comment, felt a proud smile creep onto her face. "Looks like even your Divine sees me as the stronger bender."

"Only when it comes to the elements. Let's see how well you do with the true power of the spirit world!" Silver proclaimed before Chi-Flickering to the other side of the arena.

"Amaterasu, you're up!" Silver cheered, allowing the Divine woman, full control over her body. As always, Silver's form changed to Amaterasu's preferred form and the newly appeared woman smirked.

"You're strong, but are you on the level of a god?" the divine asked with a smirk.

"Let's find out!" Gaia said, clapping her fists together like a meditative pose. The kimono she wore was replaced by a long flowing gown, coloured in the four colours of the elements while her eyes glowed white and an amulet with the four symbols of the elements engraved onto it, appeared around her neck. "This is the Elemental State, precursor to the Avatar State and the most powerful thing known to the people of my world."

Amaterasu and Elemental Gaia looked between themselves, each trying to assert dominance while also silently impressed with their rival. They decided, simultaneously, to end the battle once and for all with all the power they could muster. Gaia disassembled the entire arena and converted it into the four basic elements, assembling them in a four separate, giant orbs before combining them together into a spiralling beam of elemental power.

Amaterasu raised her hands into the air and created a miniature sun, which she threw at Gaia with all her strength. The two blows crashed furiously against one another, sending ripples of power across the miniature dimension and forced several Omega Spirits to appear to create a barrier around the two of them, so as to prevent collateral damage in the other worlds.

After the power of the two attacks finally gave out, Brykus and Izanagi rushed down to the battlefield to see the winner standing victoriously over the loser…or they would have, if both their Avatars weren't currently face down on the floor, panting like crazy.

"Man…phew, that was…fun!" Silver said, whimpering a little as she pushed herself into a seated position.

"Fun isn't the word I'd use, but it was still an amazing experience. You're quite talented Avatar Silver." Gaia said, also complaining mildly as she sat up.

"Right back at you Gaia-girl!" Silver said with a chuckle.

"Please don't call me that…"

"Aw, come on, it's a cute nickname. Anyway, Gaia is the name given to benders, other than the Avatar, who can bend all four elements in my world. It's a compliment." Silver protested.

"I think silver is literally just a colour and metal in my world." Gaia replied.

As the two First Avatars chatted happily as they waited for their wounds to heal, their divine masters reluctantly faced each other. "So, neither of us wins. We're left with a draw. But I'll admit I am impressed with Silver." Brykus said.

"As am I with Gaia. If you ever get bored of her, feel free to send her to my world!" Izanagi said with a laugh.

"That isn't going to happen." The elder god responded.

Izanagi chuckled, "So…"

"So what?"

"I bet my Korra is stronger than yours."

"You are on!"

Divine Lesson number one: As wise and powerful as they are, Divines are still people and as such, they really like winning one over each other. Good luck Korra!

I should note that while My own OC's in this story are correct in personality and appearance, my versions of Joker mask's may not be up to scratch. To get the real experience of these characters, check out his story!