
I have a question about the card slots during upgrading. Carolyn Fern is permitted 15 Seeker/Mystic cards that are non-healing. At the start of a campaign, let's say you choose 15 cards.
After Scenario 1, you spend 2 XP to buy two copies of Ancient Stone. The unidentified version does not say "heal horror", so am I correct that we need to remove 2 of our 15 non-healing Seeker/Mystics cards to add the stones to our deck?
If yes, then once we identify the Ancient Stone, and we then upgrade them to the Ancient Stone, since these have "heal horror" text, then we are now have only 13 of our 15 Seeker/Mystic card slots filled. We have 2 slots available again, yes?
If that's the case, what 1xp Seeker/Mystic card do you recommend to fill that space? Since 0xp cards still cost 1xp when you add them to a deck during a campaign, it feels bad to spend xp on a level 0 card. I'm curious to hear what the community has to say.