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I like CB Scizor as a Pursuit user to trap irritating stuff like the Latis, and with that powerful U-turn, it makes it hard for them to switch in. I also like employing a spiker in tandem, to make Feraligatr get more OHKOs with Aqua Jet.
The fact that many vicious sweepers and an annoying Hail staller were demoted to the Ambipom level is kinda surprising and I don't really think they deserve to be demoted.