I'm doing a blind Nuzlocke on White 2, alongside a friend with W2 and another with Black 2. I'm about to take on Charon, but I've already had umpteen close calls. So many criticals!
Cavosec the Oshawott - Aspertia City
Hathaway the Purrloin - Route 19
Diabeetus the Lillipup - Floccesy Ranch
My Route 20 encounter was a Sunkern, which I fainted out of spite.