It's quite frustrating to buy a card from someone only to get a used card.
I lost my Glitchmas cards from friends during the bag bug, and I'm stunned those that didn't lose them, care so little that they're selling them.
Please don't allow used cards to be sold.
If someone doesn't want them, have them donate them to a shrine or something.
I think it's unfair to pay full price for a used item.
Things were altered regarding used potions, so I would like it to be changed regarding cards too please.