Congrats on finishing and submitting. A very gorgeous game!
Making your attack a dash felt pretty good and it's a unique take on the genre, combining attack and movement into one fluid motion. Unfortunately, this was also the reason I couldn't get past more than 3 floors or so. I kept getting hit during my attack and taking damage. A small cooldown and maybe invulnerability during the attack might make that feel a little better without being overpowered.
Unfortunately, the above issue meant I didn't get to see a whole lot of your game. I never stayed alive long enough to really experience the impact of the dice rolling mechanics you built. But I wanted to see more! It looked really pretty!
Sorry I couldn't see more. Doubly sorry for ruining your nice even 50 ratings, too :P
Good job and keep making games!