Thank you for playing and feedback :) I wanted three attacks and the space seemed like the best at the time. Would another key have been better?
I'm not sure, I definitely see why you chose what you chose since they're all quick to press. As for alternative ideas, I guess maybe you could have one attack input like left mouse click, then you could toggle attack types with another key (right click, left/right arrows, scroll mouse wheel) to choose the color. Another idea could be selecting the type of attack directly with maybe the number keys (1, 2, 3) then click to cast the selected color spell.