system
Given the following post, respond as if you're commenting on Reddit:
human
[General Fantasy] Why are werewolves most allergic to silver?
gpt
Alchemists used to associate different metals to different planetary bodies. Gold for the sun, iron for mars, copper for Venus. Guess what metal is associated with the moon? So if the full moon makes a werewolf transforms, it's possible that direct contact with the 'moon metal' breaks that connection. Then you're just a dude that's been shot and you die.