Hawlucha

Hawlucha has a high base Speed and an excellent ability, Unburden. Thanks to Unburden, Hawlucha's Speed is doubled after its item is removed or consumed, giving it the ability to outpace every unboosted Pokemon in OU. Hawlucha has a great Fighting / Flying typing that grants it excellent coverage as well as a neutrality to Stealth Rock. Hawlucha has a subpar base Attack stat compared to other Pokemon used in OU, which hinders its ability to break through common defensive Pokemon without boosting its Attack. It doesn't take hits very well because of its poor defenses. This limits its role to that of a late-game cleaner that relies heavily on Unburden.