Niantic has officially announced Shadow Raids for Pokemon GO. Trainers worldwide are eagerly waiting for the Rising Shadows event, where the new Raid type will debut. The occasion is set to be a gala affair with Team GO Rocket taking over Gyms and installing powerful Shadow Raid Bosses. The event will also see the debut of Shiny Shadow Mewtwo, with lucky trainers being able to catch it.Shadow Raids are new unique Raid types where trainers will be able to battle formidable Shadow Pokemon. They will also have the opportunity to catch the same, provided they are able to defeat the Raid Boss successfully. The new mechanic also sees the arrival of other items like Purified Gems and Shadow Shards.When is Rising Shadows due to start in Pokemon GO?Rising Shadows is scheduled to start on Monday, May 22, 2023, at 10 am local time and will continue until Sunday, May 28, 2023, at 8 pm local time in Pokemon GO. As mentioned above, it will mark the debut of Shadow Raids. Interested readers can find out more about the same in our guide here.Pokémon GO@PokemonGoApp Alert! We’ve uncovered more details about Team GO Rocket’s newest scheme: #ShadowRaids! It seems they’ll be using Pokémon like Shadow Bayleef, Shadow Quilava, and even Shadow Mewtwo to defend Gyms! Full details here: pokemongolive.com/post/rising-sh…2002213🚨 Alert! 🚨 We’ve uncovered more details about Team GO Rocket’s newest scheme: #ShadowRaids! It seems they’ll be using Pokémon like Shadow Bayleef, Shadow Quilava, and even Shadow Mewtwo to defend Gyms! 😱Full details here: pokemongolive.com/post/rising-sh… https://t.co/QYOGwIBttHShadow Mewtwo will return in five-star Shadow Raids on Saturday, May 27, 2023, at 10 am local time and stay there till Sunday, May 28, 2023, at 8 pm local time. Lucky players may run across the shiny variant of Shadow Mewtwo for the first time in Pokemon GO.Which Shadow Raid Bosses will appear during the event in Pokemon GO?Pokémon GO@PokemonGoApp Alert! Alert! Team GO Rocket is back, and they’re bringing #ShadowRaids to Pokémon GO!Brief yourself on what we’ve learned about Shadow Raid Bosses, Shadow Shards, and Purified Gems here: pokemongolive.com/post/shadow-ra…5708942🚨 Alert! 🚨 Alert! 🚨 Team GO Rocket is back, and they’re bringing #ShadowRaids to Pokémon GO!Brief yourself on what we’ve learned about Shadow Raid Bosses, Shadow Shards, and Purified Gems here: pokemongolive.com/post/shadow-ra… https://t.co/6MVgvKCnOhMost Pokemon Gyms in-game will feature Shadow Raids during the aforementioned dates. On Saturday, May 27, 2023, all Raids will feature the new type from 10 am to 8 pm local time. The scheduled Shadow Raid Bosses for the event are as follows:One-star Shadow RaidsShadow Poliwag (shiny variant available)Shadow Machop (shiny variant available)Shadow BellsproutShadow Beldum (shiny variant available)Three-star Shadow RaidsShadow BayleefShadow QuilavaShadow CroconawShadow Sneasel (shiny variant available)The normal Raid Bosses will be as follows:One-star RaidsClefairy (shiny variant available)Tentacool (shiny variant available)Marill (shiny variant available)SkrelpPopplioThree-star RaidsMagnetonLapras (shiny variant available)Mawile (shiny variant available)EmpoleonFive-star RaidsTapu Fini (shiny variant available) [Until Wednesday, May 24, 2023, at 10 am local time]Regigigas (shiny variant available) [From Wednesday, May 24, 2023, at 10 am local time]Mega RaidsMega Pinsir (shiny variant available) [Until Wednesday, May 24, 2023, at 10 am local time]Mega Altaria (shiny variant available) [From Wednesday, May 24, 2023, at 10 am local time]The following wild encounters will spawn with an increased frequency for the event in Pokemon GO will be as follows:Ekans (shiny variant available)GolbatKoffing (shiny variant available)Houndour (shiny variant available)Poochyena (shiny variant available)StunkySkorupi (shiny variant available)Hisuian Qwilfish [lucky encounter]Scraggy [lucky encounter]Pokémon GO@PokemonGoAppThe Master Ball: The best Poké Ball with the ultimate level of performance. With it, you will catch any wild Pokémon without fail. Available through June 1, 2023, via free Special Research. Play now to earn yours!pokemongolive.com/post/masterball126731364The Master Ball: The best Poké Ball with the ultimate level of performance. With it, you will catch any wild Pokémon without fail. Available through June 1, 2023, via free Special Research. Play now to earn yours!pokemongolive.com/post/masterball https://t.co/L8wnvwGoS3The Rising Shadows event will feature Team GO Rocket-focused tasks for trainers to enjoy. Rewards for the same will include Mysterious Components and Stardust. Professor Willow will also hand out a free Special Research questline, completing which players will get their hands on a Master Ball.