Mightyena

Mightyena scavenges the DPP battlefield as arguably the worst fully evolved Dark-type in the game. Aside from its Attack—which is just barely decent—Mightyena's stats are awful, and its movepool—which somehow lacks Pursuit, an even more perplexing issue considering that Mightyena is based on a hyena—is horrid. Its only saving grace is its access to two great abilities, Quick Feet and Intimidate, that allow it to at least function in the UU metagame. When it comes down to it, though, if you're looking for a Dark-type for your team, you're probably better off choosing one that does what Mightyena can and then some, such as Absol, Drapion, or Skuntank.