Hoopa

Hoopa is a fearsome wallbreaker with an extremely high Special Attack stat as well as fantastic coverage moves in Psyshock, Shadow Ball, and Focus Blast. With access to Nasty Plot and Trick Room, Hoopa can put severe dents in certain playstyles, with Nasty Plot beating more defensively-oriented teams and Trick Room punishing more offensive teams. Hoopa also also sports a nice Special Defense stat, allowing it to take hits from a wide variety of special attackers such as Suicune and Florges and thus easily set up Trick Room or Nasty Plot. Although Hoopa does have some nice strengths, its Defense and Speed stats are hardly desirable, as it's outsped and KOed by the majority of physical attackers in the tier, forcing Hoopa to have Trick Room up much of the time. Its Psychic / Ghost typing can be a blessing as well as a condemnation, as it allows Hoopa to come in safely on common bulky setup sweepers such as Reuniclus, Florges, and Snorlax but also leaves it susceptible to potential Pursuit users such as Krookodile and Mega Aerodactyl.