I'm almost tempted to suggest a series of critters that hides as a particular 'masked' creature, like...Basically, instead of a single
creature, there could be several versions, each one with it's own power, but the opponent only sees a colourless creature with the stats. (Stats would have to be the same for this, idea is eeeevil in rainbows, since you could then run multiple different Kitsune colours.)
So far, I'd make this one and call it 'Clone Kitsune', while another one might be
and be known as 'burning Kitsune', and maybe an airborne air element 'Flying Kitsune'...
Hehehe, I definatly like the idea.