Aerodactyl

Aerodactyl is one of the best Stealth Rock setters in STABmons; not only is it one of the fastest Pokemon in the metagame, it also has decent offensive presence. In STABmons, Aerodactyl is able to make excellent use of Rock Head, as it can take advantage of two insanely powerful STAB attacks in Brave Bird and Head Smash. With its access to Earthquake, it has nearly perfect neutral coverage. Unfortunately, Aerodactyl is very frail and offers almost no defensive synergy, although it can switch into Ground-type attacks in certain situations. In addition, despite having very powerful STAB attacks, they're only coming off a base 105 Attack stat so they don't hit overly hard. Aerodactyl also loses to common priority users, and has a weakness to Stealth Rock.