Board Thread:False Info and Speculative Discussion/@comment-24439517-20140702142820/@comment-26879545-20160724204857

Sebastien drank from a wolf's paw print. This turned him into a werewolf. He was also an evil assbag before being turned, so in turn, it made him into a giant shadow-wolf who had immense strength.

Short version: The form you take reflects the person you are.