How does the EXP Share work in Pokemon Brilliant Diamond and Shining Pearl?

One question many gamers were anxious to have answered when Pokemon Brilliant Diamond and Shining Pearl was released was how the EXP Share would work.

Pokémon Brilliant Diamond and Shining Pearl are perfect remakes of the originals

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Complete EV training guide: Pokémon Brilliant Diamond & Shining Pearl

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4K60, No EXP Share, No Affection, Accurate Scaling, Renegade Platinum wild encounters, and 3X speed. Best way to play! : r/BDSP

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Pokémon Brilliant Diamond and Pokémon Shining Pearl Trainers Guide, Raising and Evolving Pokémon, Official Website

Pokemon Brilliant Diamond/Shining Pearl (for Nintendo Switch) Review

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Pokémon Brilliant Diamond and Pokémon Shining Pearl Trainers Guide, Raising and Evolving Pokémon, Official Website

Can you turn off EXP Share in Pokémon Brilliant Diamond, Shining Pearl? - Dot Esports

How to get EXP SHARE in Pokemon Diamond, Pearl and Platinum