Suppose you have the Hag, or else you have become a slimy little toad.
You draw a card that is a follower.
1. What happens to the follower? Is it discarded, or does it stay on the space?
2. If you draw the Black Unicorn and defeat him, what happens to him? Is he left on the space, for another character to fight in the future? (Obviously, if you draw him you have to fight him, and if he defeats you you then lose a life and he remains on the space. But if you defeat him somehow -- it is very unlikely but remotely possible -- then what happens?)
? BU offers the choice of taking it as a Follower or trophy if you beat it. If you have the Hag, the Follower-option isn't available, so trophy is "all" you get. Auto +1 Craft isn't horrible though and BU is on of the few cards in the regular Adventure deck that can help you beat the "discard a 7 point trophy" Quest.