This wild area event held by Sword and Shield. It made Magikarp the focus of the event, with a high chance to encounter one shiny, to celebrate New Years 2020. The Shiny Magikarp is a 8% guaranteed spawn, across all tiers. While Magikarp crashed the #2 event, it merely shifted the spawns. As such, Gigantamax Snorlax is still available, just at a lower rate. For base game Pokémon Sword and Shield, without this event, there is no den that will enable players to encounter a Gigantamax Snorlax