choice scarf/specs/band lets you use only one move. it usually comes with pokemon that know 'trick' so you can swap items with the opponent and make them use just one move.
You can easily get a team with a lawnmower, an ice cream, a cherry and one of a billion random fish pokemon.
Fucking had Mousey beat, Game decides to close itself, go back in and Chewie has taken over. Chewie manages to be just about beaten, tags me back in for some reason and I lose. WAC.