There are 57 Mega Stones available in Pokémon Champions at launch, and you can obtain them via the Frontier Shop, Battle Pass ...
There appears to be a problem at the launch of Pokémon Champions that is preventing players from using their Mega Pokémon.
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How to Get & Use Mega Stones in Pokemon Champions
How to get, use, and equip Mega Stones for each Pokemon in Pokemon Champions.
A guide explaining every method of acquiring Mega Stones in Pokémon Champions, including the shop, tutorial, and battle pass.
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