Well just to be make sure I understand the scenario, you have a Cursed Mirror in your own Used Pile, changing all your Attributes to the opposite because of the effect, therefore, you would of had to have a Trap of the relevant color to use with your now opposed Attributed Bakugan to use in the first place. And to answer your question, I do not believe the Hidden Attributes inside a Trap changes in this situation or in any.
