Mega Sableye powers up and Shiny Greavard debuts!

Mega Sableye powers up and Shiny Greavard makes its Pokémon GO debut during Halloween 2026 Part II! Plus, keep an eye out for costumed Pokémon in the wild. This event takes place from Sunday, November 1, at 10:00 a.m. to Thursday, November 5, 2026, at 8:00 p.m. local time.