After thinking about it and reading other's opinions and thoughts on the subject, I think that banning Swagger or banning Swagger on a Prankster user is definitely the way to go.
Though I don't see it too often, SwagPlay is an extremely luck based way to play, with the odds not in the attacker's favor. Considering that there's no sure fire way to counter it other than running a pokemon with Magic Bounce or a pokemon with Synchronize to hopefully scare them into not trying it, it's quite hard to say that it's easy to work around. Even if you give you pokemon a lum berry it only works once, meaning you get one free attack that might not even knock the pokemon out, and allowing it to wreak havoc with a dent in it's HP.
Overall, this strategy requires no skill and is seriously no fun to play against. As I stated above, I vote we ban Swagger or Swagger + Prankster.
Though I don't see it too often, SwagPlay is an extremely luck based way to play, with the odds not in the attacker's favor. Considering that there's no sure fire way to counter it other than running a pokemon with Magic Bounce or a pokemon with Synchronize to hopefully scare them into not trying it, it's quite hard to say that it's easy to work around. Even if you give you pokemon a lum berry it only works once, meaning you get one free attack that might not even knock the pokemon out, and allowing it to wreak havoc with a dent in it's HP.
Overall, this strategy requires no skill and is seriously no fun to play against. As I stated above, I vote we ban Swagger or Swagger + Prankster.