Niantic has updated the official GO Battle League Known Issues support page for Pokémon GO. Read on below to learn more: Niantic Update 12/15/2023: Trainers, we were experiencing issues with Black Kyurem and White Kyurem being rewarded in GBL. These two Pokémon were unintended, and the issue is now fixed, so these two Pokémon are … Continue reading Niantic has fixed the issue where Black Kyurem and White Kyurem were being rewarded in Pokémon GO’s GO Battle League, these two Pokémon are currently no longer available