Aerodactyl

Aerodactyl's niche is as one of the fastest Pokemon in the metagame; it Speed ties with Mewtwo and is only outsped by Deoxys formes and niche weather sweepers, which allows it to revenge kill common Pokemon like Latios and Rayquaza. Aerodactyl's good strong coverage attacks like Double-Edge and Earthquake assist in cleaning through weakened teams as well. A large draw for Aerodactyl is its resistance to Normal, forcing common Choice-locked Pokemon such as Deoxys-A, Rayquaza, and Snorlax to switch out, giving Aerodactyl an opening to wallbreak. Aerodactyl is still slower than Deoxys-A—the tier's best revenge killer and one of the most common Pokemon, so Aerodactyl can only act as a temporary answer to Choice Band Extreme Speed. This makes it much harder to utilize than Deoxys-A, as giving an opponent's Deoxys-A room to attack can be devastating. Aerodactyl does have some competition as a revenge killing Flying-type as well, as Rayquaza has a powerful Extreme Speed, which is better against fast Pokemon like Deoxys-A and Salac Berry Groudon.