After having read the “additional cards” table for Cosmic Eclipse:
bulbapedia.bulbagarden.net/wiki/Cosmic_Eclipse_(TCG)
I tried to took online for those Club Promo cards. The only article I was able to find is this:
www.pokeguardian.com/375401_pokemon-club-cosmog-cosmoem-solgaleo-and-lunala-promo-images-revealed
It seems like a somewhat limited and interesting release, since according to the article for each card there is a cap of 1500 copies (likely lower) for each card.
I found a shop that held the event by the end of november, but I can’t find any listing of the card in the major sites (Tnt, CSI, EBay…). Does anyone here know more about these cards? Is it possible that there will be another round so more copies are going to be available?