[quote=Guilty Spark]
If he can move dust at the speed to create a sandstorm, he can force it down someones throat and into their lungs.
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[quote=Sep]
Or manipulate the dust that everyone breathes normally and ruin them from the inside.Air manipulation or anything to do with small particles are always very powerful abilities that should have some serious limitations IMO.
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Okay, I'm probably going to have to come up with some sort of major weakness, then... I was thinking that he'd maybe have trouble breathing, so he'd face the problem of himself not being able to breath as well as his enemies? (Not quite as bad as asthma, but I was think he'd start choking up / start finding it hard to breath.) Also, since dust gets blown away easily, his powers probably wouldn't work at all when there's even the slightest bit of wind. He'd probably have to be able to really close to the dust for it to work as well, so I'd say standing two metres away is the maximum distance.

So, does it sound too OP right now?