There's another slightly important thing for Rock that I didn't mention in my earlier post mainly because I didn't know its stats at the time: Lycanroc-Dusk
The main reason I can see Lycanroc-Dusk having a slight niche on Rock is because of its access to Tough Claws+Accelerock. When Choice Banded, this can allow it to revenge kill a rather important threat to Rock teams in BD Azumarill:
252 Atk Choice Band Tough Claws Lycanroc Accelerock vs. 0 HP / 0 Def Azumarill: 144-169 (42.2 - 49.5%) -- guaranteed 3HKO
This isn't difficult to guarantee after some slight chip damage from Tyranitar's sand. And considering how Fairy may start running Sticky Web Ribombee, 48 Speed Cradily isn't as good of a choice to handle Azumarill. Outside of this niche it does have some decent coverage options available to it (Drill Run, Iron Head), but it for the most part will have the same niche appeal as its Midday counterpart.
Also in response to this:
Agree with the Weavile on Ice thing, but the others are kinda weird:
-Why would Dark be threatened by Blacephalon? Looking at its movepool, it can't severely threaten Dark teams any more than Chandelure can, since it's still doing nothing to Hydreigon, always gets Pursuit trapped by Alolan Muk on balance builds, and offensive builds can already handle it so easily between Greninja, Mega Sharpedo, the aforementioned Hydreigon, and even Bisharp if it's some Scarf or Specs set. I don't see why Tyranitars on either balance or offense would be running Pursuit just to handle this pokemon that's hardly even a threat.
-I'm only assuming you're talking about bulky sets on Dark when you say that Earthquake may get a rise, because Banded sets won't even need Earthquake to KO Naganadel.And the bulkiest Ttar on Rock is the AV set, which isn't afraid of either of these Pokemon. I'm also gonna assume that mentioning Blacephalon at all was a mistake, since Blacephalon is quite literally a non-threat to both of Tyranitar's types.
-Flying always had reliable defoggers outside of Zapdos, so I don't see where that comes from. Also considering how important Rotom-Wash's 4 moves are, what exactly would it willingly replace to make room for Defog?
I think the problem is you are seriously underestimating Blacephalon
252 SpA Choice Specs Chandelure Fire Blast vs. 0 HP / 4 SpD Hydreigon in Sun: 245-288 (75.3 - 88.6%) -- guaranteed 2HKO
That’s not even mind blown, that’s just regular fire blast. What this calc means is that fire blast not only 2hkos easily without sun, but also a mind blast in the sun actually just ohkos it
There’s also this:
252 SpA Choice Specs Chandelure Fire Blast vs. 248 HP / 248+ SpD Assault Vest Muk-Alola in Sun: 297-351 (71.9 - 84.9%) -- guaranteed 2HKO
Which is a mind blown in sun vs muk alola, this calc means that muk can’t even hard switch in, it also means it can take next to no chip or it just dies immediately.
Also please don’t forget that this has beast boost.
At +1 almost any chip puts ttar at risk of being 2hkod by fire blast
Onto the second one I’m just gonna address av ttar not being scared of either mon.
It may not be scared of blacephalon but naganadel is a very real threat to it
+2 252 SpA Choice Specs Chandelure Draco Meteor vs. 252 HP / 252+ SpD Assault Vest Tyranitar in Sand: 342-403 (84.6 - 99.7%) -- guaranteed 2HKO
(Calc was glitching with z moves so I just changed the base power)
You plot up on the switch into ttar and click z draco, and with no attack investment you don’t kill it back with literally anything except earthquake hence why I said it might be run more. And if you run more attack to kill with stone edge you put yourself at risk of just dying to the +2 z draco
Onto Blacephelon, it was my fault I meant on rock for naganadel and and on dark for both, and I don’t think I need to restate my reasoning for why blacephalon is a threat to dark, sure it’s easily checked but it can just switch out, and ttar can only take so many fire blasts before it just dies to either blacephalon or over the course of the game, and once ttar dies blacephalon has 0 actual switchins so there’s that.
Lastly, I know flying has other reliable defoggers but it always appreciated the double defog for things like dnite, zard y, and for keeping sturdy on skarm. In this new gen there’s next to no reason NOT to run sub toxic, with everything and their mon getting defog.
And for rotom I could maybe? See defog over pain split. Obviously pain split helps a lot tho but I can see defog getting use, which frees up zapdos’s moveset.
Also, just so this isn’t just a reply post, what are the thoughts on Blacephelon on ghost and Kommo-o on fighting. I’m not sure how well these guys will do on these types. Ghost and fighting already have extremely tight teamslots with mons that they NEED to have so that they have a chance against everything in the meta, but this definitely doesn’t mean they will not find a slot on the teams plus the fact that the meta changing a bit might make some mons obsolete on these types in favor of new things this gen. Thoughts?