The flying insects faltered, their usual mechanisms for movement failing them.  Then they started falling out of the air.

They were suffocating; it was a vacuum.

He’d chosen his powers

...

He took one step, and was carried off the ground.  It wasn’t flight so much as floating.  Combine that with the vacuum around him… It had to be aerokinesis.  Manipulation of air.

...

The bullets gradually moved off target, grazing him instead of striking vital areas.  A moment later, they stopped hitting entirely.

The effect he was using to alter their trajectories hit the rest of us a moment later.  I felt Atlas’s wings beat against nothing for just a moment before we caught air again, steered him through a sudden, unexpected headwind that dissipated as fast as it had started, and then found a spare moment to pull up, putting distance between myself and the Eidolon clone.

My bugs gave me a sense of his effect’s perimeter.  The storm effect had a diameter of roughly three-quarters my own range, no doubt allowing him to sense where people were by the movements of the air.

The vacuum extended roughly a hundred feet around him, the air condensing into threads that found him and flowed into his mask to sustain him.  Even the clones on his side were suffering, falling to their hands and knees or running to get away.  He was indiscriminate, and far more dangerous because of it.

Wildbow, Worm, 19.6