I actually wholeheartedly agree with everything Hawkstar said. Not only is Snover excellent at hard countering Sand, it's a frightening sweeper and solid revenge killer as well. As most of you probably know, Grass / Ice coverage is superb offensively, and goes unresisted in pretty much all of the top 20 Pokemon usage wise. Snover's high powered, perfectly accurate Blizzard literally wrecks teams that don't carry faster Fighting-types or Pokemon that resist it, and can hit a lot of top tier threats not only super effectively but also for an OHKO / 2HKO. Not only because it counters sand, but also, because of its speed, power, coverage, and ability to sweep a majority of the metagame with little support, I agree that Snover is S material.