Kingdra

Kingdra is a powerful rain sweeper that applies immediate offensive pressure to its foes. It outspeeds the entire unboosted metagame when Swift Swim is activated, and its Water-type attacks hit most targets for heavy damage when boosted by rain. Draco Meteor generally allows Kingdra to nuke targets that resist its Water coverage, although strong Fairy-types like Tapu Fini and Tapu Bulu wall Kingdra completely. One of Kingdra's main drawbacks is the middling accuracy of its STAB attacks Muddy Water, Hydro Pump, and Draco Meteor, which are all prone to missing at inopportune moments. It should also be noted that, outside of its STAB moves, Kingdra's offensive coverage is quite underwhelming due to its middling Special Attack stat. Defensively, Kingdra's Water / Dragon typing leaves it with few weaknesses overall but with a crippling weakness to strong Fairy-types, which are omnipresent in the metagame. Finally, it should be noted that Kingdra relies on its high Speed to maintain a commanding position, and it quickly loses its momentum if the opponent activates an opposing weather or a form of speed control like Tailwind or Trick Room.