Spinel's Injector

Spinel's Injector was a massive weapon Spinel brought to destroy Earth as a means of revenge against Steven Universe and the Crystal Gems for her abandonment by Pink Diamond.

Appearance
It had a black-accented, hourglass-shaped body with a pop-out drill and three foldout spider-like legs at its base. There was a large hot pink artificial gemstone resembling Spinel's with a heart-shaped facet.

Function
Instead of draining the life from a surrounding area to create new Gems this Injector delivers a "pure and uncut" poison or biotoxin which kills all organic life including (but not limited to) plants, animals, insects and people. The poison appears to paralyze an organic being if it comes into contact with it, as seen with Greg. If disturbed or tampered with the machine's injection rate accelerates.

This Injector can be freely controlled by Spinel herself through a horn created from her elasticity. It can be activated, deactivated or even overloaded to speed up the process which pumps the poison at a rate that it spills out.

According to Peridot, disturbing the injector would only increase the rate at which the poison is injected.

Trivia

 * It was unknown how Spinel acquired the Injector and where she also got the poison for it from.