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No Pokémon can naturally summon *Fog* as a weather condition through an ability or move, unlike other weather effects such as *Rain* (with *Rain Dance* or the *Drizzle* ability) or *Sandstorm*. However, some moves and abilities can affect accuracy or obscure vision in different ways, but they do not directly create the *Fog* weather condition seen in earlier games like *Pokémon Diamond, Pearl, and Platinum*.
The move *Defog* is related to fog, but rather than summoning it, it clears hazards on the battlefield and lowers the target's evasiveness, making it easier to land attacks. It also clears fog on the overworld map in certain games but doesn't create it in battle.
