Wanted to kill an hour or two and ended up playing this compulsively for several hours until finally beating it. You did an amazing work with this game. Managed to beat it on the 4th try. The action economy you pushed with this is really well thought out.
The art is sweet, the soundtrack is good (even though more wouldn't hurt) and the learning curve of the mechanics was a joy to discover. You really have to plan ahead which I appreciate. I don't think I can offer any ideas for improvements, but at some point I did switch between a holy and a leech weapon quite often, so maybe a weapon switch shortcut could be something to consider.
Other than that - great game. 10/10 for sure.