Surskit, the Hoenn pond-skating Pokémon, can be found in the wild in Pokémon Go. Yes, Surskit can shine in Pokémon Go!
While the shiny Surskit isn't much different from its normal form (it just turns a darker blue), the shiny Masquerain gets a pretty big change, dyeing its entire body green (outside of the pupils on its fake wings). As expected, neither Surskit nor Masquerain see any use in raiding or PvP.
What is Surskit's shine rate in Pokémon Go?
According to old research by the now-defunct website The Silph Road (via Wayback Machine), the shine rate of Pokémon on a typical day is about one in 500. Surskit is not a confirmed Pokémon that gets a “permanent boost.” ” (meaning it is a rare spawn and therefore gets an improved shine rate).
What can I do to attract more shiny Pokémon?
Unfortunately, not much. It seems to be a coincidence. Shiny Pokémon catch rates are set by developer Niantic and usually only increase during special events like Community Days or Safari Zones, or in legendary raids. There are no consumable items that increase Shiny Pokémon rates.