Sableye

Sableye's great Dark / Ghost typing leaves it with three immunities and only one weakness, notably letting it serve as a great counter to all of the Fake Out + Extreme Speed users in the tier. Its amazing ability in Prankster paired with its expansive support movepool with moves such as Will-O-Wisp, Parting Shot, Topsy-Turvy, and Taunt allows it to quickly cripple foes. Access to recovery keeps it alive for a while, which allows it to support the team throughout the battle. Because of its versatility, it is able to partner well with many Pokemon and fit well on most teams and most playstyles. It is, however, easily beaten by Prankster Taunt and can suffer from four-moveslot syndrome.

Mega Sableye, with its ability Magic Bounce, can turn foes' status moves back at them. With its increased Defense and Special Defense stats, Mega Sableye has the capability to set up and sweep teams. However, its below average HP, Attack, Special Attack, and Speed stats give it trouble at times, making it either frail, easily set up on, or outsped.