Pokemon GO's 2019 Halloween event kicks off soon, on October 17 at 4pm EST/1pm PST and runs through November 1 at the same time.
The first big feature of the event is adding Darkrai to five-star raid events, which you can find out more about here.
There's going to be more Shadow Pokemon at your local PokeStop. Specifically, you'll have a chance to see
If you're not quite sure what to do with these Shadow Pokemon once you catch them, check out our Shadow Pokemon and Purifying guide.
Additionally, Yamask will make its debut, along with its shiny variant (if you're lucky), amidst a slew of other Ghost types that will be more common, like Gastly and Murkrow.
Other Pokemon, including Cubone, Pikachu, Charmander, Squirtle, and Bulbasaur, might appear in raid battles donning special Halloween costumes.
And on top of that, there's a range of Halloween-themed avatar items is coming to the Style Shop, including a Pikachu onesie, Litwick cap, and Mimikyu bag.
You can see the full details here.