I agree with Molk about Skuntank. D Rank its better place, I only suggest Low C Rank because Im not completely sure about it. About Hail Pokemon, I think putting it too higher its a way of streching it; Hail abusers neeeds a lot of support to correctly work, and most of them arent that great with plenty of support. I agree with Texas, C Rank and B Rank are great place for Walrein and Glaceon respectively, because of the above statements. About Rotom-F Im not that sure, Rotom-F wasnt an useless Pokemon when hail isnt in the tier; pretty good STABs, that hit almost everything neutral, good overall bulk, that lets it to take hits respectably, and decent Speed that almost lets it to outspeed really important threats like Nidoqueen. That points make me doubt about Rotom-F, therefore I would like to hear the opinions of other people. Finally, I would proppose add Vanilluxe to Unstested. Vanilluxe is essentially like Glaceon: the aim is abuse of Ice Body, stalling the opponent. Although Vanilluxe has lower defense and special attack, has a important perk: 79 Base Speed, that lets it to outspeed some important threats like Nidoqueen, Kabutops or Absol for example. Really, this safe me in a lot of situations, because I was able to outstall Swords Dance Absol or OHKO Nidoqueen before he kill me.