Board Thread:False Info and Speculative Discussion/@comment-27547895-20160203212624/@comment-11533671-20160213080402

Here's a valid theory for the Beast being a werewolf but needing a chimera host: You can't be two creatures at once. That rule is broken with the use of a chimera.

The Dread Doctors aren't just passing abilities to the host but are attempting to give it the Beasts' old personality complete with memories of its "Demon Butcher" self. Maybe this is why it needed a chimera host?