Hypno

Hypno holds a niche in the tier as the fastest viable Pokemon that has access to both a sleep-inducing move and a paralysis-spreading move. This allows Hypno to outspeed and put Exeggutor to sleep with Hypnosis as well as paralyze faster foes such as Tauros, Gengar, and Zapdos and attempt to brute-force them with STAB Psychic. Hypno's biggest strength is its role compression, being a jack-of-all-trades lead that covers many matchups at least neutrally, with Thunder Wave being one of the main reasons to use it over Jynx. Thunder Wave even gives Hypno a slight edge over Exeggutor, which has to use the inaccurate Stun Spore; Submission also gives it a better time against Chansey. Hypno has decent bulk, being able to survive a couple stray hits from foes such as Tauros and Zapdos with relative ease. Hypno's mono-Psychic typing also grants it no common weaknesses, unlike Exeggutor, which has weaknesses to Jynx and Mewtwo's Blizzard and Zapdos' Drill Peck. It also has much better physical bulk than Jynx, which is incredibly physically frail.

While Hypno does fill many roles decently, it fails to do any of these roles particularly well: it's fast enough to outspeed Exeggutor and Lapras but not fast enough to outspeed any other relevant threats, being outsped and completely shut down by Jynx. It's bulky enough to tank a few hits from foes such as Tauros and Zapdos, but it has little staying power due to its lack of recovery. Hypno also has to rely on Hypnosis to put something to sleep, making it somewhat unreliable in getting sleep off. Hypno has heavy competition as a Psychic-type lead, with Exeggutor being the objectively better sleeper, Jynx being faster than it and having STAB Blizzard, and Alakazam and Starmie having Recover. Finally, while Hypno has effectively no weaknesses, it also lacks many of the resistances that Exeggutor has, taking neutral damage from Rhydon's Earthquake, Gengar's Thunderbolt, and Slowbro and Starmie's Surf, making it much worse at switching into those threats.