What's with Berengar's Medallion?
If you decide to kill Berengar you pick up his medallion and before the fight with Javed he says something like Berengar's medallion weakens him and in the flashback scene his medallion painted with a blue fume coming out of it. Also Geralt asks himself where Berengar got that medallion and tells that maybe Berengar intended to face Javed concluding from the medallion. We know witcher's medallion helps identifying monsters when they're in disguise or indicates they're near but there's nothing that they weaken monsters/evil that I know of. So AFAIC there is no clear info on what's that medallion or how did Berengar got his hands on in the game. Am I right? Is there something in books about enchanted medallions? Also any speculations on Berengar's medallion or info missed by me but exists in game are appreciated. Thanks.