While that seems logical from a game mechanics standpoint, their ruling is more based on fluff and historical precedence. Traditionally, creatures that could be affected by cold iron or silver (fey, demons, werewolves, etc.) were considered magical, and their partial invulnerability (and subsequent vulnerability) was a magical aspect rather than a non-magical allergy or some-such.Infiniti2000 said:I personally think the silver/cold iron should be Ex, btw.