How can I reset my Creation Crystal?
Creation Crystals are not meant to be reset. However, there are different options available to reuse your Creation Crystal. If you have Skylanders Spyro's Adventure for the 3DS, you can place a Creation Crystal on the portal. You will then see the message "A Toy on the portal of power has a problem. Reset this Skylander?". Choose the "reset" option.
This also works with Skylanders Giants for the Wii (also on the Wii U in Wii mode). Start the game and place the Crystal on the Giants Portal, go to settings, and select "reset broken toy". Now you can create a new Imaginator with the Earth Creation Crystal!Tech Creation Crystals - Skylanders Imaginators