Ace Emerald
Cyclic, lunar, metamorphosing
Weavile requires a TON of support to be effective. First you have to weaken the foes Fire, Fighting and Steel types so it can sweep. You also need spikes and SR support to make sure that weavile obtains those KO's. Also, because crobot is faster than weavile, it can heavily dent it with brave bird and weavile can only hit it first with the weak ice shard. Also, the rare Technitop can KO it with mach punch. Also brozong only takes 34.3% - 40.8% from a life orb night slash and can retaliate with a powerful STAB gyroball. Two useless abilities don't help weavile either.
252 Atk Life Orb Weavile Low Kick (120 BP) vs. 4 HP / 0 Def Cobalion: 260-307 (80.24 - 94.75%) -- 43.75% chance to OHKO after Spikes
252 Atk Life Orb Weavile Low Kick (80 BP) vs. 252 HP / 0 Def Empoleon: 239-283 (64.24 - 76.07%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Ice Punch vs. 0 HP / 4 Def Heracross: 191-226 (63.45 - 75.08%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Ice Punch vs. 240 HP / 0 Def Machamp: 181-214 (47.5 - 56.16%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Night Slash vs. 0 HP / 0 Def Darmanitan: 227-269 (64.67 - 76.63%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Night Slash vs. 0 HP / 0 Def Darmanitan: 227-269 (64.67 - 76.63%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Low Kick (60 BP) vs. 252 HP / 0 Def Scrafty: 146-172 (43.71 - 51.49%) -- 66.41% chance to 2HKO after Spikes
252 Atk Life Orb Weavile Low Kick (80 BP) vs. 252 HP / 0 Def Empoleon: 239-283 (64.24 - 76.07%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Ice Punch vs. 0 HP / 4 Def Heracross: 191-226 (63.45 - 75.08%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Ice Punch vs. 240 HP / 0 Def Machamp: 181-214 (47.5 - 56.16%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Night Slash vs. 0 HP / 0 Def Darmanitan: 227-269 (64.67 - 76.63%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Night Slash vs. 0 HP / 0 Def Darmanitan: 227-269 (64.67 - 76.63%) -- guaranteed 2HKO after Spikes
252 Atk Life Orb Weavile Low Kick (60 BP) vs. 252 HP / 0 Def Scrafty: 146-172 (43.71 - 51.49%) -- 66.41% chance to 2HKO after Spikes
Consider the fact that Crobat never runs max Speed and you can knock another check off that list. Safe switches into Weavile are very limited, basically bulky Water-types (excluding the very popular Slowbro), Arcanine, the increasingly rare Hitmontop, and Bronzong a few times. I'm not arguing that the thing is better than slice bread, it can be handled and revenged just fine. But look at that coverage and power. It tears through teams with moderate support and a few counters. Don't act like you have to weaken half the opponents team, its often just a few key Pokemon. Choice Scarfers are more a problem for it than any defensive Pokemon, and a very predictable Choice move can be exploited for momentum by good players. Not 100% of the time, but its not like bringing in a scarfer spells instant death for Weavile or your team. Again, I feel like your arguments are a valid reason to keep it out of S tier, but you exaggerate the support it needs and underestimate its power: its a solid A rank.