I am not a monster, I am a TECHNO BDSM WIZARD, and I shall slay the kink shamers.
Movement and art is great.
However, I am going to go against the grain and say that the main gimmick of the game, is just not very good.
In it's current form, it does not really challenge the player to "balance their mana and health", it instead, completely grinds the game to a halt and encourages the player to stab themselves against a wall, hold right click for half a minute while their health goes up and mana goes down, ad nauseam until your health is full, and your mana is 3/4 full, and since mana always pays back more health than the amount, it just stalls the game at random points in time.
After defeating the final boss, I noticed the ball it left behinds moves, and the gate was the same color, I spent a few minutes frustratingly chasing after the moving spikes to try and get some mana back, because I thought it was a puzzle to move the ball into the gate.
Then I realized all I had to do was walk through the gate...
Overall, its good, just that I don't think the main gimmick added anything to the game.