these are a few things that have come up in discord discussions that seem interesting to me, most were not originally my ideas to be clear (idr everyone who came up with each of them sry) ~
attacking lead
this is something that rly doesnt exist in rby ou [theoretically there is dodrio but the drio vs jynx lead mu isnt exactly very good anyway with hyper beam prediction and otherwise being ohkoed by blizz], and the option of a genuinely viable lead that is favorable vs jynx specifically could make a more interesting lead meta.
there are a number of different ‘kinds’ of options that have come up at various points that could fit this:
~ fast stab rock slide user: u need a significantly high attack stat for this to ohko jynx, but that is probably fine bc rock is not a good stab type in general in rby. concept wasnt discussed in depth, eg any potential secondary typing or the rest of its movepool (and stats besides faster than jynx and high attack).
if anything, i think we’d likely need to make sure the mon is good enough to be viable, rather than any concern that it could be too good, since rock is j not a good attacking type in rby. ofc it also would be a hyper beam resist
~ ‘watertrio’ this was discussed someone in depth, basically based off of dugtrio but making it a mixed attacker. secondary typings discussed were electric, grass, water, and maybe fire. ice/ground was also mentioned once but imo could very easily be broken, tho perhaps less so now with cap1 resisting eq and being fat and neutral to eq. anyway this is less anti-jynx (except the fire/ground version) and more a physical lead idea generally, but jynx will still take a lot from a fast stab earthquake. electric or grass would let it threaten starmie, electric would ‘likely’ have to not get thunder wave tho as a ground type lead with thunder wave might be too good. note even a quite frail electric/ground still checks zapdos, while grass/ground resists rhydon’s dual stab (ofc also is 4x ice weak), so those are things to consider with those typings.
water/ground was the one i thought is most interesting, this makes u neutral to ice which likely means not being ohkoed by jynx (making it maybe risky for jynx to stay in w crit ko chance + lk miss chance), and not being weak to blizz starmie, but with water rather than ice stab meaning u can be checked by exeggutor (and now also cap1) and in general not having the power of blizzard.
depending on stats, there was discussion of giving it only bubblebeam (no surf) as its best water stab, primarily to make sure it is not able to threaten reflect lax very well.
note that water/ground also might be an option for what amaranth suggested @ limber, a thunder wave immune pokémon that is not weak to chansey’s ice beam / starmie’s blizzard, so the typing could go that route instead rather than being a faster than jynx attacking lead.
~ stab headbutt/stomp lead. maybe sort of like stomp tauros in ubers, tho my actual idea was based on a ‘what if rby had linoone’ convo. even with a middling attack stat like linoone/persian, stab headbutt into stab slash would ohko jynx. with flinch chance + lk miss chance this is not rly a good situation for jynx. in the original convo @ linoone, thunder wave was discussed, if the mon has bad stats like linoone/persian then it probably needs something like thunder wave, ‘or some other interesting option’, to be good enough in the tier generally. physical attacker with twave is also interesting generally (‘like clefable’, but actually viable), doesnt necessarily have to be a lead and it would fit the ‘break the mold’ idea discussed at the beginning of cap1 as unless u count zapdos there are no twave physical attackers in rby ou. not giving it slash and giving it better attack or maybe other stats instead could be a different way to go, but ofc u prob dont want to make like a tauros-lite lol, and idk headbutt + slash seems cool and to make sense to me lol idk why.
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another thing discussed regarding twave immunities that could actually block some of the twave users could be a ground/psychic type. mostly geared toward blocking alakazam’s thunder wave. this would also fit break the mold as a psychic type that does something different.
i think this could become broken very easily, stab psychic means that it will never have much difficulty breaking reflect lax, so it would probably be a mon that u j have to attack whenever u can as other than exeggutor and starmie, and maybe cap1, defensive responses to it are likely to be lacking. ud prob want to give it just enough power so that chansey/alakazam or snorlax recovering/resting against it wouldnt go well, but so that things like tauros still have a good mu 1v1. note it will likely soft check zapdos almost no matter what u do with its stats, special drops will always bother a +2 zapdos but esppp if zap was paralyzed.