Completely random question:
I remember when XY was first released, people were really excited about Parting Shot because it was believed that decreasing a foe's attacking stats would create a great opportunity for another poke to come in safely.
The other day, I was just thinking: Is any stat-decreasing move completely not viable/obsolete? I don't mean moves that decrease only one stage like growl or string-shot... I was thinking more about moves that will drastically decrease a stat, such as Scary Face, Fake Tears, Charm, Feather Dance.. etc...
I realize that most pokemon might have better moves to fill a moveslot with, but was just trying to think out of the box a little bit. Even if the opposing pokemon can easily switch out, seems like you'd gain momentum or create some head games... Forcing them to switch out instead of attacking, making it easier for another pokemon to switch in, etc.