TOPIC: hot tokens?

So why are the blood opal charms hot? Are there any other hot tokens that i am unaware of?

The Blood Opal Charms and Mind Blank Scrolls are both ingredients for the Bracers of the Zephyr, and since they are Rares and this is the only year they've been in print, they are in demand for people wanting to get Zephyrs.  That is the same reason dungeon Ingredient tokens are worth a premium right now.  After GENCON, when they are no longer ingredients for combo tokens, the values should plummet.