>>50275641>Gen1OUPractically nonexistent. Stall as a concept hardly exists.
Virtually every team has at least 2, if not all 3, of the Big 3 Normals: Chansey, Snorlax, & Tauros. Tauros is inherently an offensive Pokemon with essentially no other way to run it. Chansey can but usually doesn't run Toxic, because badly poisoned resets to regular poisoned as soon as a switch happens, & only deducts 6% HP instead of 12%; either way, for Pokemon with recoveries, it's really just a minor inconvenience, but 10x more tolerable than being paralyzed, asleep, or frozen; it is essentially helping your opponent. The most defensive sets you can run are like either Counter, which can delete a mon's HP bar in one turn, or Reflect/Lightscreen + attacking move like Seismic Toss, which isn't even reliable & makes the already slow matches take even longer---which nobody wants. And Snorlax has nothing that can be considered stall either.
It's not worth it to go through the rest of the meta to show how stall barely if at all exists. Instead, the closest approximate to stall is binding move strategies---which, when paired with Toxic, actually does amount to a "killing them slowly" kind of playstyle. But the only time I encountered that was in NU, not OU, using the tier's plethora of Fire Spin'ers. In OU, you'll only see the rare odd Wrap Dragonite, Fire Spin Moltres, or the more common Wrap Venusaur & Clamp Cloyster, only effective at bullying slower mons, of which there are few.
If you take "stall" in a very loose sense akin to like BO (bulky offense), then you have Slowbro, which takes a lot of startup but can quickly become nearly impossible to kill if you don't have its specific counters or put it in an awful position. It's easily the rarest mon to encounter that's labelled OU, however, and the trend is to have at least one, if not two fast Pokemon on your team that isn't Tauros (Starmie, Alakazam, Gengar, Jolteon, etc.).
So tl;dr, "stall" is almost nonexistent in gen1ou.
