Ok so I'm still not sure how this would play out or if it could be broken, nor do I have a verse for this. Mainly I'm looking to see if this would be interesting as a way to handle site access, getting around site abilities, and handling multicolor sites for a site lock style deck and various thoughts on this idea in general. Hope that you all find this interesting.
Regardless of protection choose a site in play. Change the brigade of that site to colorless. While that site is colorless negate it's special ability.