Pokémon Go Primal Rumblings Event Guide and Collection Challenge Tips

Trainers are bracing for action as the Primal Rumblings event shakes up Pokémon Go with returning Hoenn legends, unique wild encounters, and a timed Collection Challenge that rewards keen collectors with exclusive prizes.

Rayquaza caught during this event will have the new Charged Move, Breaking Swipe, which has been analyzed as being better (in some cases) than Outrage on it. It’s not worth wasting Elite TMs to grab, but if you’re raiding anyway, you might as well keep the move.

Below, we list out all the event perks, including the Collection Challenge.

Pokémon Go Primal Rumblings Collection Challenge

Catch Primal Kyogre or Primal Groudon during the Pokémon Go Primal Rumblings event to complete this Collection Challenge. Spin a Gym PokéStop for the task, then battle in Primal Raids or use Adventure Sync rewards. Target Kyogre, Groudon, and their Primal forms, plus event bonuses like increased shiny odds and XL Candy. Finish the collection for 5,000 Stardust, 200 Primal Energy, and three Rare Candies. Act fast-the challenge runs through February 5.

Catch the following:

• Treecko
• Torchic
• Mudkip

Evolve the following:

• Evolve Grovyle into Sceptile
• Evolve Combusken into Blaziken
• Evolve a Marshtomp into Swampert

Rewards: 10 Ultra Balls, 1 Rocket Radar

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Trainers can expect an exciting mix of Pokémon encounters, timed research, and rewards during the Primal Rumblings event in Pokémon Go. The Collection Challenge features species linked to Hoenn and tasks players with catching specific Pokémon to earn Mega Energy and experience. Completing all objectives before the event ends ensures special bonuses and adds progress toward themed medals and collections.

Pokémon Go Primal Rumblings event boosted spawns

The Primal Rumblings event in Pokémon Go features increased wild spawns of key Hoenn Pokémon, giving players more chances to catch species connected to the region. Pokémon such as Treecko, Torchic, Mudkip, and others appear more frequently, helping trainers complete event-specific tasks and the Collection Challenge. Some rarer encounters, including Gardevoir and Slaking, may also appear, making this event a good opportunity to expand Hoenn Pokédex entries before the Primal Kyogre and Groudon raids.

• Treecko
• Grovyle
• Torchic
• Combusken
• Mudkip
• Marshtomp
• Wurmple
• Whismur
• Numel
• Barboach
• Absol

Pokémon Go Primal Rumblings event raid targets

Primal Rumblings features a mix of powerful raid bosses that tie into the Hoenn theme. Trainers can challenge Pokémon such as Rayquaza, who will be appearing in five-star raids, as well as Primal Kyogre and Primal Groudon in special Primal Raids. Lower-tier raids highlight Hoenn species like Treecko, Torchic, and Mudkip, giving players more chances to complete their Collection Challenge. Coordinating with friends is helpful, especially for taking down the Primal forms, which demand strong counters and teamwork.

• Treecko
• Torchic
• Mudkip
• Grovyle
• Combusken
• Marshtomp
• Mega Latias
• Mega Latios
• Rayquaza

Primal Rumblings best wild spawns and encounters

Primal Rumblings featured boosted Hoenn Pokémon spawns during its February 22-24, 2023, run, prioritizing the starter trio for Collection Challenge progress.

Common Wild Spawns

These appeared frequently, ideal for quick catches, Candy farming, and shiny hunting:

• Treecko (shiny-eligible)

• Torchic (shiny-eligible)

• Mudkip (shiny-eligible)

• Wurmple (shiny-eligible)

• Whismur (shiny-eligible)

• Numel

• Barboach

Rare Encounters

Lucky spawns added value for evolutions and collectors:

• Grovyle

• Combusken

• Marshtomp

• Absol

Strategy Tips

Treecko line topped for versatility in evolutions and raids; pair with Incense/Lures near water or parks for Mudkip boosts. All shared double XP evolutions, making them efficient for Challenge completion.​

Primal Rumblings raid bosses and rewards

Primal Rumblings raids during the February 22-24, 2023 event focused on Hoenn Pokémon, offering shiny chances and event-exclusive moves like Rayquaza’s Breaking Swipe. Standard raid rewards applied, including XP, Stardust, Golden Razz Berries, and rare Candy, boosted by 2x evolution XP overall.

1-Star Raid Bosses

Easy solo catches for Collection Challenge starters (shiny-eligible):

• Treecko (Boss CP ~3,554; Max CP 752)

• Torchic (Boss CP ~3,587; Max CP 781)

• Mudkip (Boss CP ~3,589; Max CP 805)

3-Star Raid Bosses

Moderate challenge, good for evolutions:

• Grovyle (Boss CP ~13,036; Max CP 1,195)

• Combusken (Boss CP ~12,177; Max CP 1,180)

• Marshtomp (Boss CP ~12,481; Max CP 1,269)

5-Star and Mega Raid Bosses

High-reward endgame content:

Remote raiding via invites was encouraged for accessibility.