Drifblim

Drifblim's decent Attack stat combined with a good offensive typing and an excellent ability in Unburden makes it an effective sweeper in the PU metagame. However, its sweeping potential is severely limited by the lack of a physical boosting move, strong STAB moves and coverage, and ways for it to activate Unburden. It is easily walled, as physical sets struggle to get past Rock-, Steel-, and Electric-types, and special sets are too weak to break through common special walls. Drifblim can be revenge killed easily, as it is weak to three common priority moves, and certain Choice Scarf users such as Raichu will outspeed Drifblim even if it has an Unburden boost. It has a decent support movepool including Will-O-Wisp, Knock Off, and Destiny Bond, which provide team support and can help it sweep. Drifblim's high HP stat is let down by poor Defense and Special Defense and a typing that leaves it weak to five common types and to Stealth Rock. Although it has the potential to spinblock, it cannot do so in practice, as it loses to every relevant Rapid Spin user. Unburden provides Drifblim with a niche over other offensive Ghost-types, such as Misdreavus, allowing it to be more effective against offensive teams, as it is harder to revenge kill.