Say a Pokémon knows Imprison. Ditto transforms into it and then Ditto uses Imprison. Technically the opponent wont be able to use any move. Is that correct?
Yes although that wouldnt be of any use here To learn more about imprison press one press two for other options,Jk heres the link http://pokemondb.net/move/imprison
Yes the opponent wouldn't be able to use any move. http://bulbapedia.bulbagarden.net/wiki/Imprison_(move)