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You can earn points by completing My Nintendo missions, such as clearing story maps.
Follow the instructions to check available My Nintendo missions for Fire Emblem Heroes.
❶ From the Home screen, tap the fountain icon.
❷ Tap the coin icon to open the My Nintendo page to view available missions.
Note: In Fire Emblem Heroes, the type of My Nintendo points awarded is Fire Emblem Heroes Platinum Points. For details about how points work, please visit the FAQ page on the My Nintendo website (https://my.nintendo.com).