I am completely new to the forum, so I have no idea if this has ever been proposed before.
Inspired quite a bit by the second season of the legend of Korra, wouldn't it be interesting to have a second
Avatar? One whom is destined to be the Agent Smith to our Neo, the Sith to our Jedi, etc...
You could have all kinds of plots spinning from this;
1. religious wars; Who is the true
Avatar?
2. Earth-shattering battles; Which
Avatar will win?
3. Tough team-ups; Who can help the
Avatar (either of them)
4. Team-battles; team
avatar versus team
avatar.
Of course there are many ways to imagine the evil
avatar. I personally did not like the take LoK took on it by introducing an old man with an established life. I'd imagine the the evil
avatar more as an innocent child, who is being raised by misguided individuals and traumatized by the evil spirit within and the tragical events he/she has to endure. Could be awesome if the Evil
Avatar is always born in the opposite element of the True
Avatar and also has the opposite sex. Sort of a Ying-Yang thing.
Besides the "evil"
avatar could have an interesting message that opposes the 'balance' story of the current
avatar. Something about chaotic progress and organic development. Balance also implies stagnation so the 'Evil'
Avatar could actually have a message people could be drawn to comprehensively.
I wouldn't want an Evil
Avatar hell bend on destroying the world. That'd be just silly and extremely cliché. But a dramatic, intelligent and pitifull creature that is destined to reluctantly oppose the other
avatar could be an interesting plot.
Please tell me what you think of the idea, what kind of Evil
Avatar you would like. If this doesn't make it to the main-plot, atleast it is a nice thought-exercise