Scyther

Scyther is a mediocre choice in PU and primarily functions as a pivot capable of checking fairly common Fighting- and Grass-type Pokemon such as Gurdurr and Victreebel. With a bulky Swords Dance set, it is capable of using its bulk to check the aforementioned Pokemon while simultaneously pressuring defensive cores reliant on Pokemon such as Sableye and Lanturn with its ability to pivot out while going for boosted attacks. It can also run a passable Choice Scarf set, being an extremely fast pivot capable of revenge killing and gaining momentum quickly, or manage a Choice Band set that can hit decently hard and be more difficult to handle defensively. Unfortunately, a crippling 4x weakness to Stealth Rock severely limits Scyther's capabilities and mandates good entry hazard removal to make it usable. This also leads to Scyther being easily pressured by Rock-type move users like Lycanroc, Aggron, and Choice Scarf Primeape and by common Ice-, Flying- and Electric-types such as Alolan Sandslash, Dodrio, and Eelektross. Even with a Swords Dance set, Scyther cannot break through common defensive options in the tier such as Regirock and Mudsdale, which leads to Scyther really struggling in a lot of matchups.