Screech, Charm, and Scary Face are actually all very useful moves, although rarely used, and hardly useful in the story mode, they can play a huge role in PvP
but that's only 3 moves. Sure, they're good moves to have and use, but there are many more moves that can be buffed up though. But since you mentioned those moves, I wonder if those ones are going to have to be left alone or buffed as well.