This is a variation on the current Lead Aerodactyl. Although the four moves used are identical, the very different EV spread allows this set to accomplish many different things from the standard one. I have conducted thorough testing on this and have found that it is able to complete its job extremely efficiently. I hope everyone will actually read and consider before questioning its viability. If it doesn't merit its own set in the analysis, I at least hope that the EV spread can be adopted.
[SET]
name: Non-Suicide Lead
move 1: Stealth rock
move 2: Taunt
move 3: Stone edge
move 4: Earthquake / Toxic
item: Babiri Berry
nature: Jolly
evs: 248 HP / 12 Def / 112 SpD / 136 Spe
[SET COMMENTS]
<p>Aerodactyl has long established itself as a suicidal Stealth Rock lead, with its blazing base 130 Speed and access to Taunt; however, its effectiveness is hampered by the extreme necessity of prediction. Against leads like Swampert and Metagross, it can choose to either taunt the opponent's Stealth Rock, risking an attack, or set down Stealth Rock on the first turn, with no way of preventing the pointed stones being set-up on your own side of the field. This set aims to combat that drawback without compromising its own utility as a rapid Stealth-Rocker.</p>
<p>An early Stealth Rock is extremely important for both offensive and stall-based teams, although Aerodactyl performs better on the former. Taunt prevents slower leads like Forretress, Metagross, Swampert and even Azelf from setting up their own entry hazards or dual screens, and unlike the standard suicide set, a misfired Taunt need not mean the end. Stone Edge and Earthquake have good neutral coverage, although Toxic has been slashed in to better deal with Gliscor and Swampert. The increased power of Stone Edge over Rock Slide makes it a better option, given the lack of attack EVs. For example, Rock Slide will never OHKO Salamence after Stealth Rock damage, while Stone Edge always will.</p>
<p>The EVs are what set this variant of Aerodactyl apart from the standard lead set. Firstly, the Speed EVs have been lowered to outspeed positive-natured base 115s, with the most significant member of that tier being Naive Azelf. This means that Aerodactyl is able to taunt it before Azelf gets a chance to set-up Stealth Rock or dual screens. Between the speed stat attained from maxing speed (394) and the current stat (363), nothing of note is missed out on. Weavile, with its base 125 speed, often has priority in terms of Fake Out and Ice Shard to beat Aerodactyl with, while settling for risky speed ties with Jolteon and opposing Aerodactyl aren't worth 116 EV points.</p>
<p>Next, people often tend to overlook Aerodactyl's defensive potential. Its valuable resistance to fire and immunity to ground, two common attacking types, not only mean that lead Heatran and Hippowdon are completely shut down, but also provide it with many avenues to switch back in after doing its job as a lead. Its base 80 HP and 75 SpD also lend it decent special bulk. With 248 HP EVs and 112 SpD EVs, Standard MixPert's Ice Beam will never 2HKO, which means Aerodactyl can Taunt the first down and Stealth Rock the second turn, while still surviving to either inflict a suicidal status or switch out. Since Stealth Rock has not been set-up on your side of the field, Aerodactyl is free to switch back in on a ground attack or after another team member has been killed. It is in a similary situation with Azelf, though if Psychic has a small chance to 2HKO. With the current investment into its defences, few leads have the ability to OHKO Aerodactyl, let alone net a 2HKO, making Focus Sash a worthless item. The Babiri Berry fits extremely well on this set because when coupled with 12 Def EVs, standard lead Metagross must roll exactly max damage twice for Bullet Punch to 2HKO. It also means that Jolly Scarf Jirachi's Iron Head will leave you with at 50% of your health, as opposed to 1% with a Focus Sash equipped. As a final note, Aerodactyl's HP investment is left at 248 EV points to round down residual damage, useful as it will likely find chances to return to the battlefield.</p>
<p>Aerodactyl is a good choice to partner Pokemon that dislike Stealth Rock, such as Gyarados and Salamence, because it can almost guarantee that the opposing lead will be unable to set it up. Teams that have problems with heavy offence also benefit from Aerodactyl's ability to shut down dual screen leads like Azelf and Bronzong. By laying down an early Stealth Rock, it also enhances the effectiveness of wall-breakers like Salamence and Tyranitar or late-game sweepers like Lucario and Empoleon, by wearing down their counters from the start of the game. Unlike the standard suicide lead though, it isn't dead weight after setting up its entry hazard, and can be used to continually shut down stall teams or take on threats like Scarf Heatran and MixMence if ever required.</p>
<p>There are still a few leads that Aerodactyl loses to. Although Choice Band Mamoswine can never OHKO, it will definintely 2HKO, so a misfired taunt might be punished. Opposing lead Aerodactyl will likely win the mirror match-up, while Choice Scarf Jirachi also threatens to flinch Aerodactyl to death with Iron Head. Packing a Forretress will help as it can help take on all three, hitting the former two with STAB Gyro Ball while setting-up additional entry hazards spikes on the latter. It also lures fire-typed moves that Aerodactyl can easily switch back into, and use that chance to lay down Stealth Rock, if it had been previously denied the chance. Once Jirachi is established to be scarfed, a Magnezone can prove helpful to trap it on a 4x ineffective move and KO it with repeated Thunderbolts, preventing it from ever tricking away its scarf or laying down Stealth Rock. Heatran also boasts 4x resists to both ice and steel, and can either set-up a substitute or hit the switch-in with a high-powered fire attack.</p>
[SET]
name: Non-Suicide Lead
move 1: Stealth rock
move 2: Taunt
move 3: Stone edge
move 4: Earthquake / Toxic
item: Babiri Berry
nature: Jolly
evs: 248 HP / 12 Def / 112 SpD / 136 Spe
[SET COMMENTS]
<p>Aerodactyl has long established itself as a suicidal Stealth Rock lead, with its blazing base 130 Speed and access to Taunt; however, its effectiveness is hampered by the extreme necessity of prediction. Against leads like Swampert and Metagross, it can choose to either taunt the opponent's Stealth Rock, risking an attack, or set down Stealth Rock on the first turn, with no way of preventing the pointed stones being set-up on your own side of the field. This set aims to combat that drawback without compromising its own utility as a rapid Stealth-Rocker.</p>
<p>An early Stealth Rock is extremely important for both offensive and stall-based teams, although Aerodactyl performs better on the former. Taunt prevents slower leads like Forretress, Metagross, Swampert and even Azelf from setting up their own entry hazards or dual screens, and unlike the standard suicide set, a misfired Taunt need not mean the end. Stone Edge and Earthquake have good neutral coverage, although Toxic has been slashed in to better deal with Gliscor and Swampert. The increased power of Stone Edge over Rock Slide makes it a better option, given the lack of attack EVs. For example, Rock Slide will never OHKO Salamence after Stealth Rock damage, while Stone Edge always will.</p>
<p>The EVs are what set this variant of Aerodactyl apart from the standard lead set. Firstly, the Speed EVs have been lowered to outspeed positive-natured base 115s, with the most significant member of that tier being Naive Azelf. This means that Aerodactyl is able to taunt it before Azelf gets a chance to set-up Stealth Rock or dual screens. Between the speed stat attained from maxing speed (394) and the current stat (363), nothing of note is missed out on. Weavile, with its base 125 speed, often has priority in terms of Fake Out and Ice Shard to beat Aerodactyl with, while settling for risky speed ties with Jolteon and opposing Aerodactyl aren't worth 116 EV points.</p>
<p>Next, people often tend to overlook Aerodactyl's defensive potential. Its valuable resistance to fire and immunity to ground, two common attacking types, not only mean that lead Heatran and Hippowdon are completely shut down, but also provide it with many avenues to switch back in after doing its job as a lead. Its base 80 HP and 75 SpD also lend it decent special bulk. With 248 HP EVs and 112 SpD EVs, Standard MixPert's Ice Beam will never 2HKO, which means Aerodactyl can Taunt the first down and Stealth Rock the second turn, while still surviving to either inflict a suicidal status or switch out. Since Stealth Rock has not been set-up on your side of the field, Aerodactyl is free to switch back in on a ground attack or after another team member has been killed. It is in a similary situation with Azelf, though if Psychic has a small chance to 2HKO. With the current investment into its defences, few leads have the ability to OHKO Aerodactyl, let alone net a 2HKO, making Focus Sash a worthless item. The Babiri Berry fits extremely well on this set because when coupled with 12 Def EVs, standard lead Metagross must roll exactly max damage twice for Bullet Punch to 2HKO. It also means that Jolly Scarf Jirachi's Iron Head will leave you with at 50% of your health, as opposed to 1% with a Focus Sash equipped. As a final note, Aerodactyl's HP investment is left at 248 EV points to round down residual damage, useful as it will likely find chances to return to the battlefield.</p>
<p>Aerodactyl is a good choice to partner Pokemon that dislike Stealth Rock, such as Gyarados and Salamence, because it can almost guarantee that the opposing lead will be unable to set it up. Teams that have problems with heavy offence also benefit from Aerodactyl's ability to shut down dual screen leads like Azelf and Bronzong. By laying down an early Stealth Rock, it also enhances the effectiveness of wall-breakers like Salamence and Tyranitar or late-game sweepers like Lucario and Empoleon, by wearing down their counters from the start of the game. Unlike the standard suicide lead though, it isn't dead weight after setting up its entry hazard, and can be used to continually shut down stall teams or take on threats like Scarf Heatran and MixMence if ever required.</p>
<p>There are still a few leads that Aerodactyl loses to. Although Choice Band Mamoswine can never OHKO, it will definintely 2HKO, so a misfired taunt might be punished. Opposing lead Aerodactyl will likely win the mirror match-up, while Choice Scarf Jirachi also threatens to flinch Aerodactyl to death with Iron Head. Packing a Forretress will help as it can help take on all three, hitting the former two with STAB Gyro Ball while setting-up additional entry hazards spikes on the latter. It also lures fire-typed moves that Aerodactyl can easily switch back into, and use that chance to lay down Stealth Rock, if it had been previously denied the chance. Once Jirachi is established to be scarfed, a Magnezone can prove helpful to trap it on a 4x ineffective move and KO it with repeated Thunderbolts, preventing it from ever tricking away its scarf or laying down Stealth Rock. Heatran also boasts 4x resists to both ice and steel, and can either set-up a substitute or hit the switch-in with a high-powered fire attack.</p>