Honestly! One reference card should show whats happening/can be done on your turn while in fuzzy form and the other side should show the same for the essence form.
Another reference sheet should list all fuzzy mages and their abilities. This would make the gameplay a smoother experience.
I know that both references are not needed when playing with really hard core players but I know a lot of guys in my game groups who will have trouble memorizing all the stiff.