Thanks for your kind comments about the game!! Really means a lot to me! I'd tried a lot to make the game feel good to play so glad that it felt that to you.
In hindsight I completely agree with you about the 7 spell. At the time I wanted to make it where it used just a little bit of energy, but it does end up becoming a nuisance to turn on and off. Maybe what I should have done is make one of the toggleables (7 - 0) never use energy if only one is active, but if 2 or more then they do.
I probably won't make this specific on into a full game, but I might tweak/balance/polish it up slightly mor after the jam. Thanks again for playing and glad you liked it!!