Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
Weaville doesn't need it's own check honestly. The combination of Manaphy and Venusaur generally keep it from taking on Hawlucha (at least that's how I handled it the three times I faced off against it).
Speedy wob sounds fun though. What would you sub out? I gave manaphy leftovers to avoid the 2HKO from AV Torn, but then I brought in AV Raikou. So, I guess shed shell is fine.
I still think Vigoroth is the biggest issue. Stall simply cannot handle it in the slightest. Most of the other offensive threats can be handled in some manner or another.
Well, seeing as u already have Tar for Talon, I suggest swapping out tran. If its there to check something else, please say. If you want to avoid the 2HKO from Torn you could always move a little investment from SpA into HP to take the hit w/o lefties. Torn is kinda that puts too much pressure on Rai so that could be handy to lessen the pressure put onto it/reduce ur predictability.
At least Goth don't have tag to fuck the meta up when vig gets banned lol
although there is a case for legalising STag and banning Goth so that Wynaut can act as an answer to elements of offense (although it does kinda suck to have a shitty base 90 HP lol)