Great idea, the sword that’s had enough violence and wants to "Stabotage" its master is really cool. On the other hand, the execution is a bit odd. A card game combined with a platformer at night is, for me, a strange genre mix, and I’m curious if there were other gameplay concepts considered during development. The gameplay itself is fun, yes, but I can't shake the feeling that there might be a better gameplay combination. From a gameplay perspective, however, I can't really fault it; everything works as it should, and I didn’t run into any major issues. The visuals and music are well done.
A few minor issues: The dialogue box during the first fight in the day was off-screen, and I thought I was stuck; sound settings should persist when changing scenes.
All in all, great job!