>>44922981Vine Whip has its use as an early game move for Grass-types to start with. Not useless, just not ideal later on. Compared to when you'd get Razor Wind, it has no use.
Nightmare has situation usage, but it's more usage than Razor Wind.
After You has no real good usage, but it'd have a niche doubles use with an incredibly fast Pokémon using it on its slower partner. I think it's about as useless as Razor Wind most of the time.
Quash is about the same, but would have the speedy Pokémon on your side ensure that a speedy Pokémon on the opponent's side moves slower so your slow Pokémon moves quicker. Also situational at best and hardly worth using, especially since Trick Room would be far more beneficial on a team with a lot of slow Pokémon.
Flatter is useless, I'll give you that one. Literally just worse Swagger except for incredibly, incredibly niche circumstances (like Contrary Serperior)
Trump Card is also useless. For its first 4 uses it's basically worse Slash, and then you get ONE 200 BP attack. And it's of Normal-type so you can't even use it against any weaknesses. Doesn't help that in Gen 7 Z-Moves could get you a similarly powerful Normal move so much faster if you really just wanted that,
Detect is pointless from the viewpoint of "it's just Protect but again" but it is still a plenty functioning move so I wouldn't list it.
