This question is similar to Kecleon and Crystal Shard...from the Compendium:
Q. If I have a Kecleon with several basic Energy cards attached and I attach a Crystal Shard to it, does its Type change back to Colorless or does its Power override the Tool? Would it be 100% Colorless or would one of its Types become Colorless (and you would get to choose which Type now is Colorless)?
A. Crystal Shard does override the Poké-BODY, and a Pokémon Crystal Shard is attached to becomes "Colorless" only. (Jan 29, 2004 PUI Rules Team)