Starfinder: Electrovore

Originally native to the planet of Verlorr, the Electrovore was on the verge of extinction with increased volcanic activity wiping out their swampy habitat and the three-headed electric eels that provided them sustenance. Explorers from the Pact Worlds unknowingly introduced this plague to the known cosmos, as it latched onto their starships and multiplied to uncountable amounts. With no internal organs to speak of, every cell in their body acts as a tiny battery that lives off of electricity, providing all the impulses to seek energy and multiply, making them especially powerful tools for sabotage.