>>16825320Debatable. Considering how Hyper Voice has a base power of 176, the only time you should use shadow ball over hyper voice is if the opponent is both weak to shadow ball and resist hyper voice... which only consists of jirachi, Metagross, Gengar, Victini, etc. Hyper voice deals more damage to mono-psychic or ghost type pokemon than shadow ball like Dusknoir or Deoxys-Defense
The same can be said for hidden power ground, although it's much more common to run into a pokemon that resist fairy and is weak to ground since all 3 types which resist fairy (steel, poison, and fire) are weak to gorund.