I played this for so much longer than I had time for lol. At first I was feeling like there needed to be more than three base abilities each, but after getting past the first battle and corrupting the knight it clicked and I think it's actually remarkably well balanced for the design. The mix of party member abilities and enemy quirks, even with the fairly limited scope, led to some really fun strategizing and made me feel clever every time I played a good round and eager for the next one even if it went badly. The visual style and character art is so good! Everyone has so much personality, even the enemies. And the tone and writing are super fun, I never would've guessed any of it was a placeholder.
I did find it to be a little bit of a challenge to get the hang of the UI without more direction, but that's totally reasonable for a jam game, especially considering how well everything actually works, which is what really counts. I think a brief little popup to highlight the changing round phases would help, rather than just having the text in the corner change, and in the very beginning I was confused that the only option was "reroll" when I hadn't rolled yet. The only thing I would call a genuine problem was pretty often one or more dice would just pop up, maybe spin flat a little, and settle right back on the same face without ever really rolling. It felt pretty unfair but it wasn't enough to stop me enjoying the game, and I can't imagine how tricky it must've been to get simulated dice physics to work as well as they do in the game.
At the seventh or eighth battle I seemed to break the game somehow, having only the cleric up, and no matter how much damage she took she never dropped below her maximum HP. Unless there was some protection mechanic I was missing, it happened whether I had her heal herself or take no action.
But yeah, this was so much fun and I'm definitely going to come back to it to see all the different corrupted forms and try to reach the end!