Bellypus: Slap this in front of a physical attacker and it will never die. You cannot lower its Defense because of Big Pecks, it can raise its Defense with Cotton Guard, it can lower your Attack and heal at the same time with Strength Sap, and it can fish for burns with Sacred Fire. It could also pressure switches with Yawn, and it has moves like Spikes and Haze with a solid offensive presence. Its one weakness? It loses to the multiple fast powerful special Electric types in the metagame. However, those are more of checks than counters thanks to Bonemerang and Toxic Thread, so I’ll say it’s probably a bit much.
Porcudrill: Has all the makings of a fantastic offensive Pokemon, but it sadly doesn’t have the stats for it. 79 with no method of boosting its Attack is rather poor, especially for this meta, and it doesn’t have a reasonable support moveset (no reliable recovery especially) to help it as an HP sponge.
Chickaring: Fun fact, mono-Flying mons that use Roost become Normal until the end of the turn. Unfun fact, that just makes this thing worse. Iron Barbs with 165 Defense, a solid moveset for both support and semi-offense (maybe even setup if you use SD), and a mono-Flying type with Roost makes this thing very much not my first choice.
Stuntile: Stunt or die, usually the former. Very thin Defense, but a very solid Special Defense, and with Play Rough, Fusion Bolt, Meteor Mash, and Waterfall, you hit pretty much everything in the meta that doesn’t outspeed you. Solid Rock mitigates its weaknesses, and you could theoretically run a Life Orb or Banded set with Parting Shot or Trick. You could even run Memento for something to come in and set up. Not the most broken thing in this meta, but do we really need another offensive Electric type?
Hyenix: Has a bag of tricks, and I can’t help but wonder how things lined up for it so well. It’s an Agility sweeper with two noteworthy sets, Skill Link and Soul Heart. Soul Heart would likely be the major set, with strong move options such as Dark Pulse, Blue Flare, Sludge Wave, and Fleur Cannon taking down foes in its path. You could also run it mixed with moves like Sunsteel Strike, Drill Run, and Psycho Cut to edge past certain checks and counters. Of course, its other viable set is Skill Link, and it gets three viable moves that take advantage of it: Rock Blast, Pin Missile, and Water Shuriken (it even gets Mat Block too). Water Shuriken gives it a strong priority option, Rock Blast in particular takes down Pidgeotine, and Pin Missile is good for other Dark types like Ninjoth and opposing Hyenix, where Fleur Cannon might not always be the choice you want to make. However, it ultimately can’t run a set that takes on every Pokemon in the tier, and it has a very thin defense stat, meaning you’d have to play it very carefully. It could still be a bit much, I’ll have to see what the other people here think, but it’s my personal favorite of the mons here.