Hey there, Thanks for the lengthy feedback :)
I could add a page to explain the different rewards, but sometimes figuring things out can also be fun. A gallery is definitely planned, but it's something I'm pushing a bit for later, because I want to progress the game a bit more first.
There are currently different starter decks for the game but only accessible to certain patreon tiers, sorry. In the future it will be public at one point. I'm currently also trying to make poison more viable with new relics etc. But because poison can be really strong (especially against single targets like elites and bosses), changes will come slowly.
There was definitely an idea to have more than just a shop (maybe someone selling relics, separating healing from the shop itself, an card upgrade place to name a few). Nothing is planned in the close future and maybe it will all be added inside the shop or not at all, we will see ;P Side note: I just recently realized the size of the shop is not scaling properly with screen sizes, so no idea how the alcove looks for you, haha.
Yes the discord will be public soon! I was travelling a lot currently and had inconsistent internet/discord access. That's the reason I was waiting to make it public. Soon I will be sitting at the PC more again, so it will be easier to manage the discord and it will go public.
overworking as solodev? never... Jokes aside, thanks to the many players enjoying the game I have a lot of motivation left to finish this project and improve it as much as I can! And thanks to the Patreon supporters, I can allocate enough time, for it not to take forever.