Very fun game. However, after playing for 15+ hours through numerous runs with many different kinds of builds and beating it once, here is my opinion of the game.
-Respawning enemies should be brought down a notch. I feel I have been cheated many times because I happen to maneuver backwards during a fight, only to find 2 enemies respawned in the shadows ready to ambush me. Running away only magnifies swarms. This leads to easy death no matter the gear. (even monk build struggles with this which I'll mention later)
-Melee weapons need a buff? Staff main abilities are just too good. Would I rather have a melee attack/ability that leads to trading blows or being able to shoot a good damage fireball from across the room? The latter is an obvious choice every time.
-Waiting is broken. As an extension of the last comment, waiting can totally just cancel almost any drawbacks staff abilities are balanced around, that being cooldowns and mana consumption. After every confrontation, waiting can basically recover full mana and all cooldowns, so even powerful crown abilities like judgement or blizzard can be used more times than intended considering their long cooldowns.
-Cold slows movement down to 1 tile every 2 turns instead? Being basically perma-paralyzed from those zombies or cold enemies can be really punishing, but this is a moot for me.
-Nerf monk ability? This is basically the best build in the game. Not only does it deal good damage, it also can add 30-40% damage bonus from hitting enemies into the wall. Paired up with its "quick" attack ability, you can deal some serious damage in the span of "1 turn." I abused this ability by running into a corner and luring enemies into a wall-lock for almost every enemy I encountered, including boss. This is how I beat the game. I love this build but its so dang powerful!
These are just my takes. I'm just a dude who played this game so don't let this be any discredit to this amazing work. Other than that, it gets really tense and requires a lot of strategies down the line of the levels. The usage of spacing and positioning is super cool. This is a really great game!