+2 252+ Atk Weavile Triple Axel (40 BP) (3 hits) vs. 0 HP /
52 Def Ninetales-Alola: 240-285 (83.6 - 99.3%) -- approx. 2HKO
180 SpA Ninetales-Alola Moonblast vs. 0 HP / 4 SpD Weavile: 240-284 (85.4 - 101%) -- 12.5% chance to OHKO
252 SpA Choice Specs Dragapult Flamethrower vs. 0 HP /
12 SpD Ninetales-Alola: 242-286 (84.3 - 99.6%) -- guaranteed 2HKO
180 SpA Ninetales-Alola Moonblast vs. 0 HP / 4 SpD Dragapult: 266-314 (83.9 - 99%) -- guaranteed OHKO after Stealth Rock and Hail damage
180 SpA Ninetales-Alola Moonblast vs. 0 HP / 0 SpD Urshifu-Rapid-Strike: 320-378 (93.8 - 110.8%) -- guaranteed OHKO after Stealth Rock
in this situation I had every major interaction accomplished and I had the chance to go max speed and have 12 more evs to dump, then I looked at
252+ SpA Choice Specs Kyurem Freeze-Dry vs. 0 HP /
24 SpD Ninetales-Alola: 92-108 (32 - 37.6%) -- 93.2% chance to 3HKO /
0.4% chance to 2HKO after Stealth Rock
180 SpA Ninetales-Alola Moonblast vs. 0 HP / 4 SpD Kyurem: 230-272 (58.8 - 69.5%) -- guaranteed 2HKO (small note: 36 SpA EVs are the bare minimum needed to achieve the 2HKO)
you actually need 36 evs to completely nullify the chance of freeze dry 2hkoing with rocks, but that's already super thin and speed tying with kartana and opposing ninetales-a is a 50% potential winning scenarios so I kept max speed and dumped the 12 evs in spdef to minimize this tiny tiny freeze dry 2hko chance.
...oh yeah, I don't think I need to provide the calc for moonblast damage vs
anyway