Another distribution of the Dynamax Crystal to get Gigantamax Copperajah has been announced, and this time it's for Ireland. Starting July 31st, you can head to Gamestop locations in Ireland to get the code.
When you enter the code, you'll get a special Dynamax Crystal. This can be activated to create a Gigantamax Copperajah Max Raid Battle in Watchtower Ruins.