How is everyone dealing with gengar right now? I'm having a super rough time and unless I'm missing something, with pursuit being gone and nasty plot adding an extra layer of difficulty dealing with it, 'gar seems absolutely busted.
Some elements of counterplay i've been quite fond of have been bulky

Drapion on more offensive teams to help much more with +0 Gengar and Scarf/non NP sets,

Pyukumuku on more Defensive teams to counter Gengar, and making sure there are other elements on the team that can revenge it etc, such as

Doublade, or a scarfer that can revenge kill it.
Other elements such as

Hippowdon,

Umbreon etc can all put more pressure on Gengar in a matchup too, but its too dodgy to rely on them as your main defensive answer, as Hippowdon doesn't take +2 attacks without significant investment, and umbreon doesn't take +2 dazzling/focus blast at all well. Stacking multiple soft defensive checks with one / two Pokemon that can revenge kill Gengar should be suufficient if you keep pressure up though.
Drapion @ Black Sludge
Ability: Battle Armor
EVs: 248 HP / 76 SpD / 184 Spe
Jolly Nature
- Toxic Spikes
- Taunt
- Knock Off
- Poison Jab
Is the drapion set i use, which can outspeed rotom-forms, duraludon and kommo-o for a fast taunt when necessary, and otherwise maximises special defence. Drapion doesn't need investment to KO gengar and indeedee, and can also help improve your matchup vs polteageist and a lot too. Drapion also doubles as a great Tspikes setter, and absorbing tspikes is great too. As twilight said however,
this drapion set does not take +2 attacks well still, so is better for using to deal with other sets like scarf and pressuring gengar that hasn't NPd, and should never be the only answer.
Pyukumuku @ Leftovers
Ability: Unaware
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Recover
- Toxic
- Mirror Coat
- Soak
I quite like using Mirror coat + SoakToxic on my Pyuku, which allows you to soak toxic lots of other enemy pokemon, and improve your matchup vs lucario/weavile etc with your pyuku by removing STABs, but mirror coat ensures you can still deal with substitute gengar. This is about the closest to a true counter you'll get to gengar.