Hi!
Nice concept! Fighting with words is a great idea, however it becomes quickly repetitive. Maybe you should have made so that every time you use a spell, it is replaced by another one. Doing so would reduce the repetivity of typing the same word over and over. Also, it's a bit tricky to avoid taking damage when attacking because when you finish typing the spell name, the game immediatly unpause and you don't have time to get your fingers back on the movement keys.
Also, I don't know if it's my fault or not but the game crashed the first time I pressed play on the menu.
Great work anyways :)