Welcome to this week's Pokémon news roundup for August 18, 2026. We have a packed schedule of events, releases, and updates across the entire franchise. From final raid opportunities in Paldea to massive mobile updates and upcoming physical TCG releases, here is everything you need to know to stay ahead of the game this week.
Final Days for the Mightiest Annihilape Raid
Time is running out for trainers looking to challenge the latest 7-star Tera Raid Battle in Pokémon Scarlet and Pokémon Violet. Players have until August 20, 2026, at 23:59 UTC to defeat and capture Annihilape with the Mightiest Mark. This level 100 Ghost Tera Type opponent features the powerful Defiant Ability and can only be caught once per save file, making it a must-have addition to your competitive roster.
Pokémon GO Water Festival and World Championships Preview
In Pokémon GO, the post-GO Fest Forever Forward season continues today with the launch of the Ultra Unlock: Water Festival. Running from August 18 to August 24, this event marks the official in-game debuts of Arrokuda and Cramorant. Trainers can also look forward to a special Lunala Raid Hour on Wednesday, August 19, featuring the shiny debut of Lunala, followed by the Starmie Super Mega Raid Day on Saturday, August 22, which introduces Mega Starmie to the game.
Meanwhile, the road to the 2026 World Championships in San Francisco is heating up. Ahead of the main event from August 28 to 30, The Pokémon Company will host a special Preview Show on Twitch and YouTube on Friday, August 21, at 1:00 PM PDT. In addition to meta strategy discussions and the debut of the official Worlds soundtrack, organizers have teased a special announcement for Pokémon Pokopia, the Switch 2 exclusive life-simulation game that recently surpassed 5 million units in sales.
TCG 30th Anniversary and Masters EX Updates
The Pokémon Trading Card Game is preparing for its historic 30th Celebration expansion launching on September 16, which will feature 30 unique Pikachu illustrations in booster packs. For immediate physical releases, players can pick up the Mega Evolution—Ascended Heroes Tin on August 28, featuring Mega Meganium ex, Mega Emboar ex, or Mega Feraligatr ex, alongside booster packs from the Ascended Heroes expansion.
On the mobile front, Pokémon Masters EX has kicked off its Marvelous Mega Run-Up to 7 event to celebrate its upcoming seventh anniversary. This update introduces characters and Mega Evolution mechanics from Pokémon Legends: Z-A, which launched in late 2025. Players can now scout Harmony and Feraligatr (capable of Mega Evolving into Mega Feraligatr) alongside Urbain and Meganium as EX Fair-Exclusive Sync Pairs.