First of all thanks for Playing and your Feedback! This is my first time trying out this style of art in a game, and after this Jam I think it will become my Go-To for future projects.
The Intention for the mana meter was to limit the spamming of spells too much, although this may be better achieved by adding a fire rate variable to the spell (I spent way too much time designing a custom editor for spell creation).
In regards to the camera would you prefer a crouch action that lowers the camera to see a little lower?