Psychic-type Pokémon will take center stage and you will find Abra, Slowpoke, Drowzee, Natu, Ralts, Spoink, Munna, Woobat, Gothita, Solosis and Elgyem very frequently. Rarer will be Kadabra and Kirlia.
You can take advantage of this event to complete the early stages of Temporary Research, which will require you to catch up to 30 Psychic-type Pokémon.