[quote=@Andreyich]
Has metalbending been invented in this timeline? Has the earth kingdom managed to take over the Si Wong tribes?
[/quote]

Metalbending isn't an art known to the public at this time. The Si Wong tribes have remained relatively neutral in regards to the current conflict; sending soldiers ill equipped to the desert to subjugate isn't a good use of resources.

[quote=@Kronshi]
Claiming the concept now while I work on CS. Airbender who never cared for peaceful ways and as such has not been considered a master despite his proficiency. Wanted to join the Fire Nation to help a year ago but was strong-armed by his fellow monks and only allowed to play messenger for the Water Tribes. Finally said, "Fuck That, I don't care if I get exiled and never earn my tattoos. Someone needs to find this Avatar," after the light beams.
[/quote]

I'll put my thoughts out on this once I get the full context in the CS. I will, however, put out a reminder that airbending is strongly tied to spirituality. Looking forward to seeing what you come up with!