Two more things I just noticed while doing puzzle after puzzle while listening to anime music.
- Mazarin's Puzzle 4 is set up as if you need to use the few Demon Fire pieces you have carefully to reach the enemy king, but in actuality you can clear the puzzle in three moves by ignoring it all because you have the range to just get them from the other side of the wall.
- Metonym's Puzzle 4 SEEMS to be that the enemy king is unreachable, and you need to farm 50 blood and win using the instantwin ability. The ability doesn't work when you try to use it though. If there's a way to reach the enemy king that I'm just not seeing, ignore this.