Earth
Fire
Air
Water
💜
An all too familiar story.
After Zaheer was capture and after Kuvira it was about 60 years, Korra was old but not out of the count, she was still a powerful avatar. Tenzin was gone, Toph was gone, Lin and Suyin along with them and as they fell, the Red Lotus began to conglomerate with the equalist to make 'The Black Lotus'.
Republic City having no military, just a police force, they were controlled, in secret by the Black Lotus, who ruled the city through organized crime and bribery. The Black Lotus knew that they couldn't take on Korra, her team avatar, or the children they surrounded themselves with, so they waited.
Once Korra died, a man claiming to be Zaheer, who seemingly had the same flying abilities revealed himself and became feared. He had formed his own 'Red Lotus' consisting of a combustionbender, a bloodbender, and a metalbender. Together they took down every bender who tried to oppose them.
That included the potential avatar. The avatar after Korra should've been an earth bender, but she was hunted down and killed before she could even start bending another element, people weren't aware that she existed.
The firebender after that one was killed accidentally when the combustionbender attempted to blow up a hospital. That leaves the airbending avatar who was born in secret. He grew up to 30, learning how to fight properly and even learned how to snuff out the abilities of a combustion bender and fight off bloodbending.
Yet, he could not handle a 4v1, the battle was brutal and he chose not to enter the Avatar State, to prevent the cycle from ending. He had his bending removed by the bloodbender and then was executed publicly. The Black Lotus used this as a warning, no one should ever attempt to usurp them.
But now we have our current Avatar, with chaos brewing in the world, Vaatu has grown inside of Raava and emerged. And that means he has emerged within the next avatar; A Waterbender. and the last Vessel that Vaatu had a name and with Raava and Vaatu in one body well that creates
The Dark Avatar