If a Pokémon with Hyper Cutter uses Cut in the overworld, it will remove all tall grass within a two-square radius of the player's position, as opposed to a one-square radius without this Ability.
Any Pokémon on the team that has this Ability and is not already holding an item has a 10% chance of creating a held item for itself, even if the Pokémon was not used in battle.