I agree with most of TRC's noms, but I'll talk about the ones I don't agree with.
rapidash to a: same thing, except rapidash is worse than zebstrika. rapidash is so weakand it's coverage moves barely do enough to things it wants to hit with them, causing rapidash to have a difficult time in the current meta, and it is also sr weak. however it has the advantages of recovery and more importantly, will-o-wisp making it not smash bait, and i think wisp is essential on rapidash at the moment. but i definitely don't think rapidash provides as much in a game as the rest of a+ rank.
Though Rapidash definitely isn't the strongest thing in the tier by far and it is weak to rocks, I don't think that's a reason for it to move down whatsoever. Its amazing coverage and good speed tier allows it to take on so much of the meta and a decent Speed tier to boot. There are few things that outspeed it, all of which can't switch into it whatsoever, and with your own Stealth Rocks up, Rapidash is able to 2HKO a large portion of the meta and tear through balance and offense (to an extent).
arbok to b: arbok is a terrible pokemon imo. yes it beats some balance cores but the efficiency at which it does it is terrible. it can't switch in to the status moves of the pokemon it victimises with it's poison stab. even with intimidate it takes far too much damage from attackers, i have seen unstabbed attacks doing over half after intimidate from pokemon with average attack stats. against any decent offensive team it is almost worthless because even at +1 it's sucker punch is doing jack shit to even frail attackers, not to mention that getting that boost is not even that likely to happen. everything it should setup on can cripple it in some way. it is forced to use aqua tail or is walled by piloswine. it is pawniard bait. it is slow. it is weak to all hazards barring toxic spikes (i guess absorbing tspikes is valuable?). it is not on the same level of pokemon such as simisear
I completely disagree with this nom, as I feel like Arbok has gotten better in this meta. If the player using Arbok is smart enough, they won't switch Arbok directly into an obvious Sleep Powder or Thunder Wave, and once Arbok has gotten in safely against something that doesn't completely destroy it and gets up a Coil, it's able to take on a ton of common mons in the current meta. You say that Aqua Tail is forced to be run to beat Piloswine, but you then lose to Pawniard, which isn't true whatsoever. Assuming Pawniard is switching in as Arbok Coils (since you wouldn't switch an Arbok into a Pawniard), Arbok can 2HKO Pawniard with Aqua Tail while Pawniard isn't even able to 2HKO Arbok at +1 Defense with Knock Off + Sucker Punch.
+1 252+ Atk Arbok Aqua Tail vs. 0 HP / 4 Def Eviolite Pawniard: 108-128 (46.7 - 55.4%) -- 72.7% chance to 2HKO
252+ Atk Pawniard Knock Off (97.5 BP) vs. +1 0 HP / 0 Def Arbok: 118-141 (45.2 - 54%) -- 3.9% chance to 2HKO after Black Sludge recovery
252+ Atk Pawniard Sucker Punch vs. +1 0 HP / 0 Def Arbok: 97-115 (37.1 - 44%) -- 100% chance to 3HKO after Black Sludge recovery
Obviously if Arbok is weakened, Pawniard can beat Arbok at the expense of taking a lot of damage and having to win 50/50s with Sucker Punch. The point I'm trying to make is that you aren't forced to choose between Earthquake or Aqua Tail in order to beat Piloswine/Pawniard. Also on your point about it being weak to all hazards, it absorbs T-Spikes, which is amazing in this meta, and is neutral to rocks, so I don't see the point here ?_? Overall, between Coil, a really strong STAB in Gunk Shot, good coverage in Aqua Tail and Earthquake, and priority in Sucker Punch, I think Arbok should stay where it is.
Now, I'd like to make a nom of my own.
--> A+
Stoutland was nommed for S earlier, which I don't agree with, but I definitely think this thing's presence in the current meta has shown that it should be A+. Between its extremely spammable main STAB in Frustration/Return and Facade to discourage burning/poisoning this thing and its coverage in Superpower along with Scrappy, this thing is almost impossible to switch into. Some of the few
reliable switches into it I could think of off the top of my head that can possibly switch in multiple times are Solrock, Carbink, Wormadam-Trash (lol), and physically defensive Avalugg. Solrock is the only real decent one in this meta, and its honestly not even that great, as it loses to both S-ranks, while Carbink is really only good on stall or sun, the first of which is bad, the second of which, its job is done better by Onix. Wormadam trash is, well, trash, and it shouldn't ever be used, and physically defensive Avalugg (or Avalugg in general) honestly isn't good in this current meta. It has great bulk as well, meaning you can't just easily come in and revenge kill it with a fast Pokemon such as Zebstrika or Rapidash and it can usually take a hit and pick up a free kill. It also has a good typing that makes it extremely easy to just throw on a team and still have it synergize pretty well. I honestly don't know why this hasn't been moved up yet, but I feel like now is the time.