This game is very pleasant, and I have a fun time with it. For a jam it's impressive. If you plan to work on it a bit more, here is my feedback :
- The art style is good
- Flipping card is satisfying
- The Resources UI (at left) need some work, borders, a more appropriate font.
- The menu need some life, moving waves, boats, monsters, etc...
- The menu Music surprises me, I was expecting something more epic (because the intro put emphasis on battle)
- Like the Level music
- Loss/Gain are explicit.
- Cards are awesome (It would be great to see the protagonist on tile, when applying the effect, especially when there is a cool-down)
Hope it helps