Dreadnought employs a plasma wave against Rakosan fighters

A plasma wave was a type of weapon used by the Cardassians that emitted an omnidirectional burst of plasma, which created an energetic wave that was nearly impossible to evade. The weapon was most useful when used against multiple small targets, as it allowed the user to attack several targets at once.

The Cardassian missile later known as Dreadnought possessed the ability to generate plasma waves. (VOY: "Dreadnought")

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