Moved this to the SQSA thread where it belongs. Primeape dropped because even though its previous main checks dropped off, it's got a bunch of new ones. Jellicent and Froslass entering the tier means that at best its STAB isn't very spammable, Oricorio-Pom-Pom has gotten far more popular to offset the decline of Sensu, and Mudsdale is way more popular than it used to be (at least it was when ape dropped, it's cooled off a bit since). The influx of Choice Scarf Togedemaru also really sucks, since it means that Primeape's 95 base Speed is no longer the scarfer standard like it used to be. Teams are prepared for similarly fast mons and common U-Turns, and Toge itself is an effectively annoying Primeape check. Oh and Rocky Helmet got real popular which punishes Primeape for spamming U-Turn so much. Finally, the meta trended towards Scarfers that provide a bit more defensive utility like Togedemaru, Kabutops, and even Skuntank. Primeape's far from terrible, but there's not much in the meta that really favors it at the moment, it works on specific builds but it's far from the super splashable, high usage threat that it used to be.