I just found my favorite entry. Clean graphics with just enough detail, beautiful animations (the character bobbing, the way the map slides up and down). I liked that on death you would reset in the same room, reduced the usual frustration I have with metroidvanias. The level layout is top notch, and the puzzles are difficult enough without being obtuse. The boss battles were a highlight. It's amazing how you managed to make a turn based grid combat system so exciting and strategic. And the music only complimented an already great game.
If I'm gonna nitpick, I'd say the Knights should have been the final boss, because those mf-ers kicked my ass hard until I finally managed to beat them.
This should become a full game.