The event will take place August 14-15 and will feature Eevee, giving you another chance to get some Shiny Eevee evolutions
As the featured Pokemon, Eevee will be appearing more frequently in the wild than usual throughout the entire weekend, meaning you'll also have an increased chance of finding a Shiny
Any Shiny Eevee that you evolve will retain its Shiny coloration, making this a good opportunity to add some Shiny Eevee evolutions to your collection