EX Raid Battle, Pokémon GO Wiki

An EX Raid Battle, formerly Exclusive Raid Battle, is the same as a regular Raid Battle, but it is invite-only. These raid battles only occur in EX Raid Gyms. Trainers must obtain an EX Raid Pass, prior to entering battle. EX Raid Battles are similar to existing Raid Battles, with a few notable differences. EX raids periodically appear at EX Raid Gyms around the world; however, unlike existing raids, Trainers are invited to join an EX Raid Battle. To receive an invitation to participate in an EX

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