>>29690608>>29690628Since GS, it was always a BL Pokémon whose only Steel STAB was Metal Claw, which was its signature move until Crystal.
It was buffed on Gen 4 thanks to adding a good ability in Technician, and since Platinum it can learn Bullet Punch, a priority STAB that is boosted by its new ability, Bug Bite from Move Tutor, a Bug STAB that can eat its target Berry and is also boosted by Technician, and Superpower through Move Tutor, a Fighting-type coverage that might not be the best move but makes Scizor to hit like a truck and because you can switch any time you want then it makes Superpower better.
Then Gen 7 came and added Psychic Terrain, a new terrain move that prevent moves with increased priority to always fail and combined with low Speed it will make Scizor to have a hard time (at least to summon Psychic Terrain is needs the target to waste a turn on it)