Boss fight Boss.

I'm looking for information on the Boss fight Boss package . . . other than the obvious that I can read in the kick starter.
what kind of card is this?
What is Boss loot?
Gold foil?
Vanity project/
What are your thoughts?
Do you want to Boss fight?!
Is this Wow . . . or meh.?

I'm thinking about a purchase . . . but I'm not being sold.

Why would I want this pencil?