thanks for playing.
I will take these comments into consideration for updates. Seems like a lot of first time understanding issues.
For the deckbuildler scene. Once the deck is open (horizontally showing the cards) you can click on the cards on the left to put them into your deck.
Viewing post in SlayQueen: The Gatekeeper jam comments
I see, I think maybe you need to have that main screen to the left say "All cards" or something as simple as that, in between the deck and the cards you could have an arrow that points right too, that would help a lot.
I'm not sure how much of my feedback was helpful, they're just thoughts as I was playing, hopefully it's in a style of a todo list.