Green Kryptonite (Earth-Prime)

Green Kryptonite is a radioactive mineral originated from Krypton.

Lucius Fox's Journal
At some point after Bruce Wayne became Batman, Lucius Fox recorded all possible ways to penetrate the Batsuit in a journal. Years later, the journal was discovered by Alice, Hush and Mouse in a search for defeating Batwoman. The trio then interrogated Luke Fox in order for him to translate the coded text in the journal and eventually gained the pair of glasses that translates the text. The team then continued to search for Kryptonite in Gotham City and was able to acquire a small piece of Kryptonite from Dr. M. Darby in Gotham University. It was then destroyed by the Bat-Team after a fight and the team continued to search for the only remaining piece of Kryptonite in Gotham - Kate's piece from the Original Multiverse.

Leviathan
After being arrested by the DEO, Rama Khan destroyed the organization's headquarters and stole the stored Kryptonites for Leviathan. Later, the Leviathan worked with Lex Luthor in order to defeat Supergirl. Despite their efforts to use Kryptonite against Supergirl, the latter was able to build an Kryptosuit and fight back easily.

Functions

 * Kryptonian Weakening: When exposed to Kryptonite, the green mineral makes Kryptonians vulnerable and causes dizziness.
 * Batsuit Penetration: The Batsuit is vulnerable to the green mineral and will be easily breaking apart with Kryptonite when carved into weapons.

Appearances
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