>>45848346Fucking retard, assuming constancy with the past forms is the natural assumption here, it is in all pokemon evolution lines except for those with deliberate personality differences like magikarp. Every time a mon's general character changes the dex points it out (for other examples see the Lycanroc forms vs. Rockruff or Golisopod's entires vs. Wimpod's). Once again, assuming that Grimm's suddenly changes without anything saying so is the fanfic.
Actually you know what, Golisopod is a good example for you. Its dex entries say that it's a brutal fighter unlike Wimpod, but its ability tells us that a lot of that is really just a big front. Abilities can communicate character too, and that's in-game stuff for you. So, what do you think about grimm getting prankster like its previous forms? Every single mon with this as one of its possible abilities is a fucking prankster.