It may also be 0 points for base package, +X for "pick 3 of these", +Y for "get all of these".
Personally, Pandora: Emotional Trauma, Expose Fears would be crucial. Box Opens you may choose based on opponent. By the same token, while Lilith's Master of Malifaux is huge for the average board, if you get a board with 4 pieces of terrain that may have just become another Terror Tot. =)