The movement feels great on this. I especially loved discovering that you can dash in any direction. Combining that with the down attack makes for some really satisfying combat. I also like how the mechanics are slowly introduced to the player.
I would say, the hurtbox on the enemies feels double the size of what they should be, which lead to frustration. And while I do like the boss fight, I feel like it ended a bit too quickly, I wish they had some more health. I'd also recommend changing the keybinds for attack and spell to the mouse or the right side of the keyboard (HJKL...). It's not that much of an issue here since the combat is slow enough, but I think it'll still play smoother to separate the movement and attack keys to different hands for these games.
All that aside, this is a very solid entry, especially for your first jam. It's enjoyable and the movement and combat is really fun to master. Great job on this! :)