PLASMA BOMB!
Assuming a deliverable small quantity of plasma was released at a target, the only effects would be brief, intense heat and a modest shockwave from superheated air.
One team, comprised of researchers from Drexel University and General Sciences, is developing a controlled bomb that uses a chemical reaction to heat a piece of metal beyond its boiling point. Once vaporized, the metal will react with atmospheric oxygen to create the ionized plasma. Another proposal under development by researchers from the University of Maryland and Enig Associates also uses vaporized metals to supercharge the atmosphere. This proposal is much more explosive, though, using mini-detonations to heat pieces of metal rapidly, causing them to vaporize. The amount of plasma produced in this latter reaction can be controlled by changing the intensity and form of the explosion.
https://www.digitaltrends.com/cool-tech/air-force-plasma-bomb-radio-communications/