Gem Rejuvenator

The Gem Rejuvenator is a weapon used by Spinel in Steven Universe: The Movie. The weapon possesses the ability to strip Gems of their memories, causing them to revert to their original selves.

Appearance
In its inactive state, the Rejuvenator is a magenta grip with a pink switch approximately two inches below its hilt. Upon activation, a long, dark magenta pole extemds from the grip with a gemstone-like object on its tip. From there, two beams of pink energy exdend from either side of the "faux" gemstone, with one of the beams coalescing into a short, v-cut blade, and the other becoming much longer and scythe-shaped. Sometimes, bands of pink energy can be seen crackling around the blades.

Abilities
The Gem Rejuvenator works similarly to a Gem Destabilizer as any Gems struck will be immediately poofed. However, upon reforming the Gems will not remember anything other than their original purposes. The affected Gems will also revert to their very first outfits. It is possible to restore affected Gems' memories by recreating the events or feelings which have had the greatest influence over those particular Gems.

Much like the Destabilizer it proves ineffective against non-Gems with no visible damage. However, it had a different effect on Steven Universe, who is a human-Gem hybrid: his gemstone took the brunt of the attack, and his powers became severely weakened. For example, he was incapable of summoning his mother's shield for more than a few seconds, and he could not store objects in Lion's mane or bubble Spinel's gemstone after she was poofed. Even before he was partially depowered, the Rejuvenator had been able to cut right through his shield.

History
According to Bismuth this weapon was once used by the Gem Homeworld to reset Gems that defected. The only one known to have existed in the current day was Spinel's weapon of choice.

Trivia

 * As with her Injector, it is not known how Spinel obtained one of these weapons.
 * The Rejuvenator's appearance is based on that of a scythe, which is often associated with Death in Western Lore. However, the Scythe is also an agricultural tool used to reap mature crops, enabling new ones to take their place.
 * This is symbolically used in the movie, as it causes the "deaths" of the affected Gems' personalities, but resets them so they are "reborn" with their original appearances and mindsets.
 * It is also unknown when Homeworld started using these weapons and when or why they stopped.
 * It can be speculated that Rejuvenators were primarily used in Era 1, due to the fact that Bismuth recognized it, but Peridot did not.
 * It shares many features with lightsabers from the Star Wars franchise: both weapons have blades made of energy, and can be extended and collapsed by pressing a button on their hilt. Additionally, both weapons start off as small, cylindrical grips which, when activated, elongate into technologically-advanced versions of archaic weapons.
 * Peridot inadvertently references this parallel when asking if the Rejuvenator had a laser.
 * Gems who restore their memories after being poofed by the Rejuvenator keep the same form they had before they were poofed.