I've been struggling to put into words my feelings about the Sleep Move ban in SVOU. Overall I think it was a great and admittedly long overdue change that has improved the health of OU. My only gripe regarding this ban is a few small oversights, many of which aren't necessarily relevant in OU, but seeing as this rule affects EVERY tier I think it's only fitting to consider them.
RE: Yawn
Yawn is a very unique move with qualities that sets it apart from other sleep inducements, which makes it deserve its own assessment. Functionally speaking, Yawn is more of a phazing move than a volatile status inducer like Spore or Hypnosis. Because of it's two-turn nature, making the opponent drowsy rather than directly putting it to sleep, it is historically never used on offensive Pokemon, often being used on defensive pieces akin to Clodsire, Sylveon, or Houndstone in their respective tiers as a way to offset their passivity via 'forcing' switches with the fear of sleep. Although there were multiple factors contributed to sleep being banned, such as the volatility and impact of turns spent asleep, it's undeniable the influence offensive Pokemon like Iron Valiant, Hisuian Lilligant, and Darkrai had on the sleep ban, as they could completely flip games in a few turns with sleep removing their would-be checks. Offensively speaking, sleep moves are virtual OHKO moves that had no place in the metagame, and I'm not here to deny that, but in terms of defensive uses of sleep moves I think things are quite different. Yawn at worst is simply a nuisance used by defensive Pokemon to keep their opponent from getting too comfortable, Spore from Amoonguss and even Hypnosis from Alolan Ninetales appeared to be far less contentious presences in the metagame due to them not having such potent offenses to back them up.
RE: Effect Spore and Friends
This is a lot simpler. Effect Spore, Dire Claw, and Relic Song (might be missing something else) can inflict sleep. There is no sleep clause mod, they inflict sleep, please ban these. Too many times do I get two Pokemon slept by Effect Spore and suddenly I've been hit by two of these 'virtual OHKOs' without my opponent even using a move.
RE: Yawn
Yawn is a very unique move with qualities that sets it apart from other sleep inducements, which makes it deserve its own assessment. Functionally speaking, Yawn is more of a phazing move than a volatile status inducer like Spore or Hypnosis. Because of it's two-turn nature, making the opponent drowsy rather than directly putting it to sleep, it is historically never used on offensive Pokemon, often being used on defensive pieces akin to Clodsire, Sylveon, or Houndstone in their respective tiers as a way to offset their passivity via 'forcing' switches with the fear of sleep. Although there were multiple factors contributed to sleep being banned, such as the volatility and impact of turns spent asleep, it's undeniable the influence offensive Pokemon like Iron Valiant, Hisuian Lilligant, and Darkrai had on the sleep ban, as they could completely flip games in a few turns with sleep removing their would-be checks. Offensively speaking, sleep moves are virtual OHKO moves that had no place in the metagame, and I'm not here to deny that, but in terms of defensive uses of sleep moves I think things are quite different. Yawn at worst is simply a nuisance used by defensive Pokemon to keep their opponent from getting too comfortable, Spore from Amoonguss and even Hypnosis from Alolan Ninetales appeared to be far less contentious presences in the metagame due to them not having such potent offenses to back them up.
RE: Effect Spore and Friends
This is a lot simpler. Effect Spore, Dire Claw, and Relic Song (might be missing something else) can inflict sleep. There is no sleep clause mod, they inflict sleep, please ban these. Too many times do I get two Pokemon slept by Effect Spore and suddenly I've been hit by two of these 'virtual OHKOs' without my opponent even using a move.