As per the official announcement, poor Magikarp is primarily known for “being an easy target for predators” and is often called “underpowered” and “pathetic,” but the Fish Pokémon is nonetheless going to be the star of August’s Pokémon Go Community Day.
On Aug. 8, from 11 a.m. until 5 p.m. in your local time, Magikarp will be more common, which will thereby also increase the chances of coming across a Shiny Magikarp. If a Magikarp is evolved during the event window, the evolved Gyarados will automatically learn the move Aqua Tail. (Evolving will also be made a little easier, as exclusive Field Research tasks will earn players more Magikarp Candies.)
August’s Community Day Box will include 30 Ultra Balls, an Elite Charged TM, six Star Pieces, and an Incense, and for $1 (or the equivalent in local currency), players will gain access to a Special Research story centered around Magikarp.
Other bonuses, such as 3× Catch Stardust, also await on Magikarp’s special day.