He has no attacks because he used up all his training points to learn to speak english, just like Meowth.
Yep, he is our little poke translator just like team rocket has. No more do we just get drudrudge drudge drudgey drudge because he will tell us that the drudge in front of us just wants and orange soda and some cheetos.
However, he could be more like Miu and is using his psychic attacks to control you, and you are really running the take over of the world and Adams is trying to thwart your attempts to take down our only defense.
Yep, definitely either like Meowth or Miu, and you can either believe that he is a helpful translator and friend or a mastermind manipulating every step you take.