Pokemon Legends: Arceus - Everything You Need To Know About Mass Outbreaks

thegamer.com:

Pokemon games have dabbled with similar mechanics for years, but Pokemon Legends: Arceus' mass outbreaks are still a clear step forward. The basic concept behind such features is that a bunch of the same species of Pokemon have been spotted chilling in a set location — a good example of a past effort can be found in OmegaRuby & AlphaSapphire's DexNav — and shiny-hunting players use that information to swing by in search of those elusive alternatively-colored beauties.

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But again, there's never been anything quite like mass outbreaks. They're a major evolution, pun either intended or unintended, take your pick, to a formula that could only ever expand so brilliantly in a game like Legends: Arceus. And if you're even remotely intrigued by the concept of packing your ranch full of ultra-rare Pokemon varieties, this is one guide you won't want to skip.

There's a lot of Hisui in Hisui, a whole big world to traverse in search of its every pocket monster. With so much game to grasp, figuring out how to even unlock mass outbreaks can be confusing.

The truth is, there's no established unlock moment. Many activities in Pokemon Legends: Arceus are, indeed, tied to when an NPC in the story first mentions the notion, but mass outbreaks play by their own rules. On your way out of Jubilife Village, the gate guard will let you know when a mass outbreak has been spotted. He'll kindly suggest that you take care of yourself out there since his implication is that such events are dangerous, not advantageous.

We're from the future, so we know better than all that. The gate guard's warning is our win. He tells you which region of Hisui the event is taking place,