Duggy Evo! ^
also, I voted 2 previous evolutions. The first form could be a NFE type poke (I.E. low stats, small and simple looking) pure ghost type, looks like a ball of gassy bandages with eyes. Call it revage or revendge (reven + bandage.) It has the same abilities (shed skin and air lock) as revenankh.
Second evo could be a ghost/normal type. Make it uu/bl and useable. It'll look like ankh's head with the back not intact, bandages trailing off with a hole in the back of its head. no body, but hands materializing out of purple gas wisps. Its name could be revist (reven + fist) and it gets a new ability called transparency which makes it immune to physical attacks. Makes sense because its a ghost, so waterfall won't hit it, but surf will.
Feel free to pick this apart, I'm just throwing ideas around.
I just realized that these two sound kinda like gastly and haunter. LOL