Just because you make your points in a rude and blunt fashion doesn't make them good.
It's not hard to set Aurora Veil multiple times in a match with Alolan Ninetales provided that you're not playing completely awfully.
Mega Metagross is everywhere currently and completely counters Ninetales, as do many OU mons (Scizor, Magearna, Celesteela, etc). If you read what I said, I said that it is not
trivial to set Aurora Veil more than once - which it isn't. I wouldn't say it's incredibly difficult to set more than once, but super duper easy it isn't, and so a second screen setter does make that process trivial.
But thanks for undermining my ability as a player, even though I don't really think you read what I said properly in the first place - i.e. I never said setting Aurora Veil was incredibly difficult.
By using Alolan Sandslash to set veil, it takes 2-3 turns due to needing hail up in order to set it in the first place, which is a) unreliable, b) inefficient and c) outclassed by ordinary screens. (Hint: Aurora Veil is only viable on Pokémon with Snow Warning.)
It takes two turns, one where you auto-hail and one where you bring the secondary Aurora Veil user in (if not Slash as that double switch can be so terribly tricky, then Mew, as it doesn't share Ninetales' weaknesses and so a manual switch is more reasonable).
You say it's (a) unreliable, why? There's not many weather pokemon that want to be switching into Ninetales (only Zard-Y after it has mega evolved), so having hail up for 2-3 turns is IMO in no way an un-reliable phenomenon. All you have to do is get that pokemon out at some point if a few turns time.
You say it's (b) inefficient, and sure you're right it is. But you're missing the point, it's a
secondary setter providing additional utility with Rapid Spin also. You are still supposed to set Aurora Veil with Ninetales, but hypothetically let's paint a situation. You and your opponent have three pokemon left, and you end up with Ninetales against Mega Metagross. Ninetales has set hail, so even though it gets the OHKO from Metagross, your secondary setter can now set Aurora Veil - allowing whatever you had in slot three to set up even though the odds looked unfavourable.
Or better yet, your opponent had a surprise scarf and OHKOed Ninetales. You now have an opportunity to easily set AV and then set up with something else, as there's little Slash can't outspeed. The point is, the secondary setter is opening more opportunities to set Aurora Veil that you didn't have previously.
You say it's (c) outclassed by ordinary screens, I really wouldn't say that's true. Yes, hail has to be in effect, but all that means is Ninetales has to be out a single turn and then you have 4 turns to secondary set. As mentioned, bringing in additional weather doesn't happen much in practice as Ninetales deals with them well already, so setting Aurora Veil inside of those turns isn't a problem. To me, it edges conventional screens as they take two turns to set (literally providing your opponent a free switch if you insist on both) and they don't expire on the same turn - giving a one turn disparity in your defences which, while not awful, still is worse than when the effects go away at the same time.
This requires wasting a team slot, which could be used on something which a) isn't redundant, b) fills a role that's not already filled sufficiently by a mandatory partner and c) isn't terrible, on Alolan Sandslash.
For example, if you want hazard removal, you could run something like Latios or Tapu Fini, or if you want Aurora Veil you can just... y'know, use it on Alolan Ninetales (who does it better due to Encore and access to Snow Warning).
You've already covered these points elsewhere, as have I in previous posts, so your comment here was pointless. Rapid Spin/Revenge-killing and cleaning/opening up more opportunities to set AV that differ to the opportunities that Ninetales in does not strike me as redundant or terrible, and though the role is filled by a partner it doesn't hurt to have something secondary filling that role as well as others (teams that have two Taunt users, etc.). Neither Latios nor Fini can dual screen in one turn, which is the point of an Aurora Veil team in general. Slash supports that crucial team role better than they do.
Also as I keep mentioning, I never said that Ninetales shouldn't be your primary Aurora Veil setter.
SD+3 Atks is better than this set because it at least does something that isn't completely redundant while not being hard walled by a large swathe of the meta, even if it's still god awful.
SD+3 Atks has poor mileage given that an Aurora Veil Ninetales needs to hold Light Clay and not an Icy Rock to make good use of Aurora Veil. Further, the typing doesn't exactly lend itself to a set-up turn. With the high speed tier, the suggested Slash set is doing something (setting Veil mostly without fail against fast mons) which as you point out the hard walled SD set rarely does.
Have fun stopping a Volcarona sweep consistently when it a) sets up on partner Ninetales with complete impunity and b) you can't even 2HKO it
You're completely right, I can't 2HKO it, what I can do is OHKO it and outspeed it at the +1:
252 Atk Sandslash-Alola Rock Slide vs. 0 HP / 0 Def Volcarona: 388-460 (124.7 - 147.9%) -- guaranteed OHKO
Or even with a more defensive spread:
8 Atk Sandslash-Alola Rock Slide vs. 0 HP / 0 Def Volcarona: 312-368 (100.3 - 118.3%) -- guaranteed OHKO
I think you got a little caught up in the vigorous nay-saying to engage your brain.
...same goes for Charizard X, except exchange "2HKO" with "get remotely close to OHKOing". Beyond these two 'mons, Mamoswine and Weavile achieve basically everything this set achieves with regards to revenge killing bar, like, Scarf Lele (which you need Iron Head on Slash to do consistently) due to their access to Ice Shard, lack of reliance on hail and the latter being naturally faster than a big chunk of the meta.
Ninetales outspeeds Zard-X, so even if you can't take a hit from it you can set Aurora Veil, which is fine late game as it puts X massively on the back foot. Slash doesn't have a reliance on its speed and hail to necessarily Rapid Spin all the time, and as I mentioned earlier Slash can run Hail to set it itself. And sure, Mamoswine and Weavile are better and faster revenge killers, but they don't revenge kill and offer utility. Plenty of people run Rapid Spin on Sand Rush Excadrill with TTar, whose speed tier is similar - really how is that any different?
This set is so immensely forced that I'm quite frankly shocked that you haven't hit your internal "fuck it" button and given up on the idea that Alolan Sandslash is even remotely viable by this point.
Well it's rude, belligerent and unpleasant people like you who sustain me and give me the will to go on. Have a nice day.