Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
:froslass: UR to D
After skimming through the VR rises and falls, I noticed Froslass rise from Unranked to D tier. I can really only assume but whats the reason for the rise, although it seems like a minuscule niche.