Aerodactyl-Mega @ Aerodactylite  
Ability: Pressure  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant / Jolly Nature  
- Dragon Ascent  
- Diamond Storm  
- Earthquake  
- Taunt / Accelerock  
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Optional Move(s):
- Ice Fang
- Defog
- Stealth Rock
- Hone Claws
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Overview:
Mega Aerodactyl carves itself a solid niche as a revenge killer with high Speed and Tough Claws ability to boost contact moves such as Dragon Ascent. Thanks to its Rock/Flying typing, it is capable of offensively check Marshadow and the offensive Flying-Types such as Ho-oh and Mega Salamence. However, Mega Aerodactyl struggles breaking through bulky Steel-Types such as Celesteela and defensive Necrozma-Dusk-Mane. Despite its great offensive presence, it is still forced out by any bulky pokemon that can survived its attack and retaliate with a heavy damage.