<p>God, people airbenders cannot manipulate air they didn't make. Also, waterbenders can move clouds and they don't necessarily need help from airbenders, maybe if they are weak. Shadowbending, for airbenders, really? Bones can't be bent by earthbenders guys. I will put a list for all the sub-elements: </p><p>Earth: metal, mud, seismic sense, and lava(although some people don't think so) </p><p>Fire: lightning, redirection(some people don't cosider it but i do), and lava </p><p>Water: plant, blood, ice, steam, healing, mud, and that thing Unalaq does. </p><p>Air: air </p>

<p>Although, as a big airbending fan, I've come up with a few ideas with air sub-elements </p><p>Sound bending: ventriloquism but more extensive and the ability to deafen </p><p>Light bending: if sound bending can happen, then light bending can happen at an even smaller scale (this one tricky, it might be part of fire instead. It's all in the way you look at it) </p><p>Void creation: sucking all the air from a place causing everything around it to be sucked to that place, not destroyed just moved </p><p>Also, this isn't sub bending because it's still air but sucking air out of people's lungs to knock them out </p>

I think lava is an avatar level skill so it's hard to tell whether it's fire or earth. Likely a mix just for the avatar

<p>Did you know: if you tried the whole sucking air out of people lung's technique people can just move their head in another direction or even close their mouths, put their hands over their mouth. I'm sorry but this skill would not be lethal. </p>

You do realize that the force of air required to strip oxygen from a persons lungs would be enough to keep their mouth open while performering the technique and also air can be sucked out through the nose. By putting hands over your mouth still let's air escape but the point is no oxagen is entering your lungs and all the air is being pushed out like a vacuum which is indeed deadly

I think suffocation would be to graphic for the show... could always have it in a fanon if you're desperate

<p>I could see an Airbender controling an airless zone by ripping all the breathable air out... this would knock a person out.  and to the lava thing I think it is both earth and fire... remember the whole mud bending toph and katara did, same but different </p>

<p>^ if the airbender did that he would also knock himslef out. Also @Thebridge14 rember in the omashu episode when azula cuts the air when aang throws an air lash, exactly, someone could just put their hand over the air vent and breathe afterwards. I am going to admit this skill would be deadly, but tooooooooo slow and too blockable. </p>

<div class="quote"><i> <p>Layton224 wrote: I could see an Airbender controling an airless zone by ripping all the breathable air out... this would knock a person out.  and to the lava thing I think it is both earth and fire... remember the whole mud bending toph and katara did, same but different </p> </i></div>
<p>The lava bending is an Avatar only skill. As for mud bending, I don't know. Like you said, probably a combo move like cloud bending. </p>

<p>@Yerbyrico: just suck all the air out in like a 5 foot radius, then they can't breathe. </p>