Has this ever been done before? Wouldn't it make more sense to just destroy the cards that didn't make it into the Series 1 packs?
I get why they would want those cards to be distributed, but to me, it's part of the history of Series 1. A production error meant certain cards
never made it into the packs and that should remain as is.
Someone had the idea of inserting the missing S1 meta-rare cards into S2 and call them "retro meta-rares"