It's too radical and will cause people to instantly drop the project. This kind of change makes no sense even if you believe that Dedenne and Raichu are similar. You have already angered a number of people by making Raichu, a long-standing evolution of Pikachu, an evolution of Dedenne. Unless you're inventing new Pokemon, altering a Pokemon's type will ALWAYS rub people the wrong way. The very fact that you're hacking Gen 6 is worthy of applause, but you've made a few very significant changes that a huge majority of people would never support and that will ultimately hurt the success of your hack. You posted it on /v/ because you wanted some attention, so I signed up because someone has to be That Guy.
![pokemon neo y documentation pokemon neo y documentation](https://z9v5j9a5.stackpathcdn.com/wp-content/uploads/2018/12/NeoY-compressed.jpg)