This has been updated to match my "Signature Weakness Project." I have done my best to make sure that the original content isn't altered too much, out of respect for any comments.
Everyone seems to think that this is a really bad weakness, and everyone is right. Looking at the two elements, the effect and the discard condition, we get:
The effect: You pay a resource for every matching icon you commit. Silas, who generally runs resource-lite, does not like this card at all and will want to clear it PDQ. There is no mitigation besides having a bunch of resources or the free space to take a .
The discard condition: Take two actions, which is a pain in solo, but less so in multiplayer. Watch out for those AoOs!
All in all, this is an average signature weakness.
Box vs book Since it's a set with two pretty good signature assets and not in the "worst signature weaknesses of all time" gallery, it's up to personal preference whether you want to go with the "box," "book," or both signature sets. Pick your pleasure and your poison.