rogue airbender doodle

I was finishing up the Legend of Korra a bit earlier today, and I ended up doodling something without even realizing it.

Anyways, I guess it's supposed to be an airbender who bends poisonous gases. I'd assume he would have great knowledge in the matter and he would be able to mix already present gases into poisonous ones without having to carry it around with him. Also, he has needles on his glove to inject the poisonous fumes into somebody's body just in case they found a way to avoid the gases in the air. His main weakness is that he can't breathe in the poisonous gases, so he always has to wear a gas mask. He's pretty much a bad guy and a terrorist I guess.

Story-wise, I think he would either be an unknown assailant who somehow gained the ability to airbend, or he would be born in an era when the airbender population recovered.

I didn't really put too much thought into this guy lol.