Aegislash can always be revenged by CB tar.
252+ Atk Choice Band Tyranitar Pursuit vs. 252 HP / 4+ Def (custom): 302-356 (93.2 - 109.87%) -- 93.75% chance to OHKO after Stealth Rock
UltiMario's set is the scariest by far in this thread. Take a good look at it again:
Aegislash @ Life Orb
Ability: Stance Change
EVs: 252 SAtk / 4 Atk / 252 Spd
Timid / Modest Nature
- Autotomize
- Shadow Ball
- Sacred Sword / Flash Cannon
- Hidden Power Ice
Aegislash Autotomizes first. CB Tar tries to revenge kill, but is instead OHKOed by Sacred Sword. Even Scarf-Tar is outsped and OHKOed by Sacred Sword. Props to UltiMario for thinking up this set: but he was a bit arbitrary with the Speed Tiers. Choosing a more careful speed tier, I think the following stats are better:
Aegislash @ Life Orb
Ability: Stance Change
EVs: 252 SAtk / 140 Atk / 116 Spd
Quiet Nature
- Autotomize
- Shadow Ball
- Sacred Sword
- Hidden Power Ice / Shadow Claw
116 Speed with neutral nature hits 202 Speed, which is 404 after autotomize. Scarf Heracross is 403, and Base 130 (ex: Mega Gengar and Jolteon) are slower than that. The goal is now to OHKO as many "quick" Pokemon as possible.
Bulky Waters are good switch-ins to Autotomize. But Gastrodon is 2HKOed by Shadow Ball and is outsped even without Autotomize. The extra Atk EVs are filler, but help out against Hydregon. (giving Aegislash a near unassisted OHKO). Shadow Claw helps vs Jolteon (almost a guaranteed OHKO after stealth rocks). Without Shadow Claw, Aegislash is forced out by those OU pokemon.
Tentacruel and Rotom-W are not within OHKO range, even with Stealth Rocks. But bulky waters like them are best dealt with Shadow Claw.
HP Ice straight up murders Landorous, Gliscor, and Garchomp however, so I think HP Ice is the standard attack... with Shadow Claw as a potential backup attack for the tricky player.
Bulky Waters like Gastrodon don't like it when Aegislash uses Shadow Ball on the switch-in. Aegislash then is faster than a lot of those slower bulky waters, and then 2HKOs them. Otherwise, bulky waters are very good switches into Autotomize.