Check:
Mega Aerodactyl
Aerodactyl @ Aerodactylite
Ability: Unnerve / Pressure
EVs: 168 HP / 124 Atk / 216 Spe
Jolly Nature
- Pursuit
- Aerial Ace
- Stone Edge / Aqua Tail
- Roost
Aerodactyl is an underrated mon that has the unique role of being a Pursuit trapper and Revenge killer at the same time. Although Aerodactyl speed-ties with Alakazam, it cannot OHKO Aerodactyl even with a round of Stealth Rock damage. However, Aero has a good chance of OHKOing Alakazam with it's STABs. Most often what happens in the exchange is that Alakazam switches out, and that allows you to Pursuit and remove it.
Although taking Rocks damage is a nuisance, Aerodactyl's bulk should not be underestimated. It is one of the few Pokemon in the metagame that can easily take on +1 Volcarona and OHKO it without issue. It can also OHKO or force out many of the dominant forces in the tier at the moment such as Excadrill, Lopunny, Serperior, and Tornadus-Therian.
While Aerodactyl has some trouble breaking through bulkier teams, it can pair well with other mons like Ferrothorn or Cofagrigus that can chip teams down with hazards and status, paving the way for Aerodactyl to clean.
Calcs:
Vs Alakazam
252 SpA Alakazam-Mega
Psychic vs. 128 HP / 0 SpD Aerodactyl-Mega: 190-225 (
57 - 67.5%) --
guaranteed 2HKO after Stealth Rock
252 Atk Aerodactyl-Mega
Stone Edge vs. 0 HP / 4 Def Alakazam-Mega: 238-282 (94.8 - 112.3%) --
68.8% chance to OHKO
252 Atk Tough Claws Aerodactyl-Mega switching boosted
Pursuit (80 BP) vs. 0 HP / 4 Def Alakazam-Mega: 332-392 (132.2 - 156.1%) --
guaranteed OHKO
Defensive Calcs
Vs
+1 Volcarona
+1 252 SpA Volcarona
Fire Blast vs. 128 HP / 0 SpD Aerodactyl-Mega: 144-169 (43.2 - 50.7%) --
guaranteed 2HKO after Stealth Rock
+1 252 SpA Volcarona
Giga Drain vs. 128 HP / 0 SpD Aerodactyl-Mega: 132-156 (39.6 - 46.8%) --
guaranteed 2HKO after Stealth Rock
Keep in mind it will take even less damage from these mons if paired with a Sand setter like Hippowdon.