Ninetales-Alola @
Never-Melt Ice
Ability: Snow Cloak
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Blizzard
- Moonblast
- Freeze-Dry
-[Flex, mostly doesn't matter]: Pain Split, Toxic, Encore/Grudge, Icy Wind*
This set aims to act as an offensive wall breaker, and occasional revenge killer due to its nice 109 speed tier. With the damage boost from Never-Melt Ice and lack of boots, you can bluff Choice Specs fairly easily, allowing you to hit with your decent coverage options on the follow up.
In the fourth slot you have a number of options. Because of the lacks of Specs/Life Orb, and the mediocre 81 Special Attack, on a set like this I feel like your last slot is best used by rounding out the utility that you need. Pain Split gives the set a bit of longevity that it otherwise lacks, and allows you to bluff Specs while racking up Rock damage every time you come in, only to Pain Split down a high HP special sponge on incoming. Toxic speaks for itself, but ironically because of the nature of your first three coverage attacks, really only helps with Volcarona and Victini. The two options in Encore and Grudge serve similar roles in using your A-Tails to sacrifice itself for tempo. Encore will help a mon that can come in on A-Tails checks to set up, while Grudge can clear the way potentially for other Ice/Fairy comps. Icy Wind would be the only attack options I'd run in this slot since it still deals respectable chip, and can act as speed control. Just don't run Hypnosis, that move is awful. Regardless of what you slot fourth, you will be best served by clicking your first three buttons vast majority of the time with this set. It doesn't need hazard removal as much as a Specs/Scarf set would, but it still definitely improves its quality of life.
Edit: You know it's a heat week if Suwa shows up to drop a set