DarkBreath

, Yami buresu (闇ブレス) is a Black Enemy Tech used by Airframes,DeadHead,Black Dragon in. This tech enables the user to breathe out a plume of ominous gas to both inflict fairly heavy damage and the Darkness status effect.This tech also has a low chance of inflicting a negative Status Effect.

Airframe
The Airframe will fold its wings together, and as it opens them again, it will open its mouth to exhale a thick plume of dark gas at the selected target. The target will then be engulfed by this gas momentarily before said gas disappears.

DeadHead
Directing its line of vision toward a single opponent, DeadHead exhales a jet of dark smoke that smacks into the target.

Black Dragon
The Black Dragon, on the other hand, will flap his wings to raise himself up into the air. Upon reaching a certain height, he will exhale a thick plume of dark air at all enemies present on-screen, causing them to be knocked off their feet.

Name Origin
Since this smoke expels from the lungs of a Black Innate creature, this name fits quite well.