Q: For the card Trading Post, can Creepers be exchanged for Keepers or is it only Keepers for Keepers and Creepers for Creepers?

A: Yes, you can trade any ‘eeper for any ‘eeper. Anything goes at the Trading Post! And, for the follow-up question about whether the other person has any say in what or whether you trade, this “trade” is like the one in Exchange Keepers — the other player has no choice, despite the implications you may draw from the name.