Well made prototype for a possible future project.
It has definitely nice visuals (love the animations) and dynamic fast-paced combat.
Really pleasant battle and interesting AI behaviour. Main character also have cool abilities.
Great potential for a hack-n-slash project, especially if you'll add much more variety in player's possibilities.
What it should to have for now is a conceptual (and more stylish) UI.
You should add more icons on UI with hotkeys for them so player always would understand
what key stands for and what abilities he possess.