This section is incomplete. Please feel free to edit this section to add missing information and complete it. Reason: Does Hustle have any effect on the levels of fished-up wild Pokémon in Gens. VI and VII?
From Pokémon Emerald onwards, if a Pokémon with Hustle is in the first slot in the party (even if fainted), there's a 50% chance that a Pokémon will be forced to the upper bound of their encounter level range. It shares this effect with Pressure and Vital Spirit.
When fishing with a Pokémon with Pressure, Vital Spirit, or Hustle as its Ability leading the party in Pokémon Emerald, Pokémon Brilliant Diamond and Shining Pearl, or any Generation IV game, it will trigger with its standard 50% activation rate. In the Generation V games, Pressure, Vital Spirit, and Hustle will not have any effect on the levels of wild Pokémon found through fishing.
Generation VIII
In Pokémon Sword and Shield. Hustle appears to have no effect on the level range of wild Pokémon.