Love the gothic theme, and the back-and-forth flow is great! The reversal of power every time day and night switch gives the game really strong pacing. It was really satisfying when the sun finally set and I could turn the tables on all those villagers >:) Also, some really great piano work in that music!
I do think you could maybe tighten up the combat a bit. The character moves pretty slow by default, which wouldn’t be an issue if I could dash more than every 8 seconds or whatever the time was. As is it felt like I was moving through molasses, unable to catch up to villagers runnign away from me or get into the shade quickly during the day. I think reducing that cooldown, and maybe upping the movement speed a bit, would help the game-feel a lot, and bring in that frenetic slasher feel I think you were going for.
With some tighter movement, though, this would be an even more satisfying fighter! Some randomly spawning items or something might help mix it up in a post-jam? Just an idea!