[@Raijinslayer] Skill doesn't concern me so long as he doesn't blink and tornadoes start appearing. Since we have an entire Wiki entry as a summary I think detail's pretty much covered.

Given the rules of bending we know that....
1) He needs to be able to move his arms and legs to perform any feat.
2) His target has to be in line of site
3) While wind is virtually invisible, we'll be able to tell what he's doing because he'll be telegraphing the attacks through movement. This means that it's virtually impossible to hide where the attacks are coming from.
4) He can't move anything excessively heavy like most metals.

And with aura, we don't have a lot to fear in terms of damage from his semblance. I think your character is fine so far but I'd like to know how you mix this with Roller Blades?