I’m a HUGE fan of butterfly playing cards I think they are absolutely gorgeous. I’ve purchased several decks I think I’m at 12-13 at this point. There is a secret marking on the v1 related to mneumonica and I have yet to find it but I also don’t have v1 in my hands anymore (sent off for custom work). Can anyone point me in the right direction? I’ve found the secret with the version two that wasn’t discussed just can’t for the life of me figure out what it is on version 1. I know they are expensive but I believe they are worth every penny.

Is this not covered on the 53 minute video tutorial that you get with the deck?

I just checked the PDF written instructions you also get, but those are only a few pages, and don't mention anything about this.

I had no idea such a marking system existed with this deck! Thank you for the marvelous news. As Endersgame stated though, it should be in the video tutorial.