Good thing the Factory, and most of Cloudsdale, was made from it. Rainbow came up to her door after pondering on what could be considered a parade of worst-case scenarios rolling through her head, most of which having to do with the freaky power and her office. The lighting just never worked when she wanted it to... "Alright, here we go... where's my medication?" She stomped in onto the concrete-like cloud, her hooves making a loud 'clack, clack' that echoed off the equally-strong walls. "Sheesh... more paperwork, great."