Hoopa

Ghost

Hoopa's high Special Attack, low Speed, and access to Trick Room allow it to act as a wallbreaker and dismantle opposing teams as a functional member of the niche Trick Room Ghost archetype. Hoopa's additional Psychic typing allows Ghost teams to threaten bulky Poison-types like Toxapex and Mega Venusaur. Along with its decent STAB moves in Shadow Ball and Psychic, other coverage moves like Thunderbolt and Focus Blast improve Hoopa's overall coverage, hitting Pokemon like Mandibuzz, Gyarados, and Hydreigon. While Hoopa's abysmal physical bulk leaves it susceptible to strong priority moves like Mega Scizor's Bullet Punch even inside Trick Room, its outstanding Special Defense allows it to find setup opportunities in front of common special attackers like Keldeo, Rotom-W, and Tapu Koko. However, its typing also is its greatest weakness, as Hoopa is 4x weak to Dark- and Ghost-type moves. This means that it is weak to commonly used moves like Knock Off, Shadow Ball, Shadow Sneak, and Dark Pulse, which also makes it harder for it to find opportunities to set up. This also means that Hoopa is extremely susceptible to getting Pursuit trapped by opposing Pokemon. Hoopa also does not fit onto any other archetype of Ghost, as its low Speed leaves it outclassed by faster special attackers such as Blacephalon and Gengar when not used on Trick Room.