Do you have a research box Raikou/Zapdos? Those are strong Electric counters.
Piloswine has several effective profiles, and is fairly high level before it scoots out of Great League. Either move paired with Avalanche would go well, as would an Ice Weavile, though frailer.
If you happen to have a low level SD Tyranitar (say a shiny, you evolved during one of the community days), that would also work.
A Confusion/Avalanche Jynx is quite strong, and would hit with both moves for SE damage.