I believe that hail is just too powerful for NU at the moment. It has many abusers in NU like Ice Body Glaceon, Ice Body Regice(when relesed), Rotom-Frost, Walrein, Duosion, Piloswine, Lampent(due to its typing), Articuno, Lapras, Vanilluxe, Beartic, and any other water type that can use...