Beheeyem

While Beheeyem faces a lot of competition from the other Psychic-types in the tier, it has one thing going for it that all the others lack: Analytic. When coupled with Beheeyem's horrible Speed, Analytic lets Beheeyem hit like a truck against the majority of the tier. Beheeyem can also use Trick Room, which turns its horrible Speed into an advantage and lets it outspeed the majority of the tier. Unfortunately, Beheeyem only has the bulk to take a single strong hit, making it pretty hard to bring in without getting 2HKOed on the switch, especially as it will get outsped by pretty much everything. Finally, unlike other Psychic-type Pokemon such as Musharna and Mr. Mime, Beheeyem has a lot of difficulty dealing with Dark-types, as it has no way to avoid being trapped by Pokemon such as Skuntank and Liepard.