Piloswine

Ever since its introduction, Piloswine has been continually bashed as a bad Pokemon due to its terrible defensive typing, in addition to horrid Special Attack, Special Defense, and Speed stats, which was particularly bad since Ice-type moves were entirely special attacks. However, the 4th generation changed Piloswine's fortunes by introducing the physical/special split and giving it Ice Shard and Ice Fang, as well as an evolution in Mamoswine. Despite being overshadowed by every other Ground-type, including its evolution, Piloswine has enough tools at its disposal to inflict damage in UU, thanks to its good Attack stat, decent physical bulk, and STAB moves.