Hi! This is my first post on a VR-type thread, so sorry if I make some mistakes... I'm not going to talk about Pokémon that I haven't used yet, or I'll try to avoid talking about them, unless it is something quite obvious.
Stay in B-
I have been using Araquanid this past few days, and I have to say that it is a fantastic Pokémon. In my opinion, it should be B, bur I think that is beacause I like it, not because it has merits. Here in Spain it won a VGC18 tournament a couple days ago, as Araquanid is used too much in this region, but it still is really good. It has access to Wide Guard, so it is a great Landorus-T check (it cannot just switch into a Rock Slide, but it is a great EQ switch-in). Also, thanks to its great Special Defense and ability, Araquanid is a really good Charizard-Y check, as it can "easily" eat a hit and do some damage with Liquidation. It can also switch in into Tapu Fini, Cresselia or Heatran, and cripple them with a Liquidation or a Toxic. You can also run Bug Bite to have a good match up aganinst Snorlax, as it cannot Recycle after having its berry eaten by other Pokémon. Also, Araquanid is a great rain counter if Politoed is the rain setter (use Pelipper, it's better), and can handle rain sweepers as Swampert-M, Ludicolo or Kingdra
But Araquanid has some flaws, it has a poor physical defense, and it has to spam Wide Guard against Pokémon like Tyranitar, so it can't hit them in return. Tapu Koko and Zapdos are really popular these days, so you have to be really careful while using this Pokémon. For these and other things, I don't think it should be rise, but neither should drop imo.
B- to C+/C
There is no actual reason for using Clefable over Clefairy or Amoonguss, none. Clefairy's ability is superior to its evolution one. Friend Guard is one of the best abilities in VGC imo, as you can just Follow Me without risking any double target moves, as they are going to do little damage. Clefairy's speed tier is better than Clefable's one; being that slow is a great advantage as it has Encore and After You, being a really good TR counter; while Clefable is not slow nor fast enough for abusing Icy Wind or Tailwind. If you are using Clefable, you do that because of its support ability, not for its damage output, so it's not an actual reason for saying Clefable is better than Clefairy.
If you still think Clefable is better than Clefairy because it can run a recovery item, just use Amoonguss, as it has Regenerator and can have a 50% berry. Amoonguss can even support more your team because it has access to Spore, so you can use Protect with your set-up Pokémon and sleep something with Amoonguss (you have to keep in mind that Tapu Fini and Tapu Koko are really popular nowadays, as well as Charizard-Y). Also, Amoonguss has access to Clear Smog, so you don't have to think about Unaware just for opposing set-up sweepers (also, those set-up sweepers are really rare, as I can only think about Terrakion, Tapu Fini and Azumarill, while Amoonguss having a good match-up against two of them).
I haven't really use Clefable as I don't see an actual reason for using it, so maybe it's a little bit cocky from my part to criticize it, but having used Amoonguss and Clefairy has told me that Clefable is not a Pokémon worth using, so imo it should drop.
B- to unrank this shit C/C-
Please, can someone tell me a reason for using Gigalith? No, you can't, because there are none. I will be shot for this: if you want it as a Sand Stream user, use Tyranitar. If you want this as a TR sweeper, use Stakataka. I have finished, it is really simple.
Another nomination I want to make is this one:
A+ to A, or even A-
I loved Kangaskhan in VGC15, it was probably the best Pokémon after Landorus-T, or even better than Landorus-T. You could run ir fast, slow, bulky, with Low Kick or Power-Up Punch, with Protect, with Ice Punch or even with Fire Punch for Ferrothorn. But the best part came in VGC16, you could lead Kangaskhan Smeargle or Kangaskhan Talonflame against those Groudon, Xerneas, Rayquaza and Kyogre and even 4-0 them without having to switch any Pokémon, just using PuP and sweeping them with redirection or Tailwind. It was a really good support Pokémon, being a really good partner with Xerneas or Groudon, as they could set up with Geomancy or SD, and sweeping the opposing team. And furthermore, it made a really good pair with Cresselia and Bronzong, as you coul run whatever Kangaskhan, fast or slow, and just sweep with the speed control that those Pokémon gave to Kangaskhan.
But oh boi, gen 7 has come, and Kangaskhan has recieved tons of nerfs. Its ability is now wack, not to mention it doesn't have PuP, and Sucker Punch recieved a huge nerf. Nowadays, the only viable Kangaskhan set is the bulky one, and without Sucker Punch, as it is really bad. You have to run Fake Out, a normal stab, and two coverage moves or one coverage move and Protect. Don't get me wrong, Kangaskhan is still an OK Pokémon, it has access to Fire Punch, Ice Punch, Sucker Punch, Low Kick, Drain Punch... But its damage output is heavily overwhelmed by Charizard-Y, Salamence-M or Metagross-M ones. It is a slow Pokémon, not because its base stat is bad, but it's because if you want to run a fast Kangaskhan set, you should use Lopunny-M instead as Jamie Boyt said once.
And I don't think it's just me, Kangaskhan's usage has dropped a lot, as the only team that can afford having Kangaskhan is pure chalk, and even in those type of builds, you can run Metagross or Charizard-Y. Rain teams usually use Swampert-M, Mawile-M or even Salamence-M (maybe a few of those run Kangaskhan, but it is not a staple). Sun teams run Salamence-M or Metagross-M. Sun teams, obviously, use Charizard. Perish Trap teams, or even just aggressive ones use Gengar-M as a staple. TR teams use Mawile-M, and even hard TR teams use Camerupt-M. So... if you want to use something that it is not Chalk, you are probably not using Mega Kangaskhan.
That's my reasoning for dropping Kangaskhan's viability, it is still a little bit spashable, but normally there are better mega evolutions for a specific team, or at leasy it's what I think...