Flilix on 21 October 2017
TPCI announced a Halloween event for Pokémon GO. Candy rewards will be doubled and players will be able to catch all kinds of spooky Pokémon. More importantly, this will also be the first time that gen 3 Pokémon appear in the game, including Sableye, Banette, and others.
https://www.pokemon.com/uk/pokemon-news/more-pokemon-haunt-pokemon-go-this-halloween/
