Hello
Glad you like the game!
I agree with spikes from cards, but because I find it strong enough for enemies, I'll probably just increase the amount and not change how the effect behaves.
I feel like heal cards are strong enough, but I'll consider if I add a "remove X poison" on top of it. Poison has its place to counter block-decks etc. Every deck needs a weakness or it becomes boring.
I don't think the beast deck needs defensive moves. You can always go for some mystic cards etc. No one forces you to go 100% beast. An attack that also weakens could be fine though, but I'm not sure if it is needed in stage 1.
There are different starting decks for patreons. The free Version will stay with the basic starter deck for now.
There will be new events in stage 3 (they are not added yet). To counter the repeating events, I just need to add more events. This is currently only a time issue, I would love to have more events ;)
Achievements are planned in the future, but not currently. I might add a Cursed-Gamemode or something in the future after the game is finished. Starting relics that change each run will come soon though :)
Thanks for the detailed feedback!
B.