The tutorial was nice, but could have been even more readable and accessible by using ICONS in steps of keywords like segment and all (I say that but the n°1 negative point about my own game is it's lack of tuto so who am i to talk ^^)
And to finish on the readability, more than reading "damage," having an icon as well would feel more intuitive and would help to skim through the power and the one you wish to use
Amazing art, love the sprite animation!