Drawing symbols for magic attacks is a cool idea. At first it was pretty frustrating trying to get it to work, but I think I started to get a feel for it with a bit of time. Pulling of a symbol without the guide to help felt quite satisfying! I was pretty bad at Defence Mode tbh, felt like the height limit was too low relative to how large the symbol had to be, but maybe I just need to get gud.
Cant wait to see what the game become as you flesh this idea out!