MagnemiteThe Kanto Magnet Pokémon can be found in the wild in Pokémon GoYes, Magnemite can be shiny in Pokémon Go!
Magnezone is a pretty good Electric attacker if you set it up with Spark and Wild Charge. It does more damage as a Shadow Pokémon (which you can probably already see). It still lags behind Electivire, so if you have an army of them, you don’t need to invest in Magnezone.
What is the shiny ratio for Magnemite in Pokémon Go?
According to aged research conducted by the now defunct website The Silph Road (via Wayback Machine), the shiny ratio for Pokémon on a normal day is approximately one in 500. Magnemite is not a confirmed Pokémon to receive a “permanent buff” (meaning it appears infrequently and therefore has a boosted shiny ratio).
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 are usually only increased during special events, such as Community Days or Safari Zones, or in Legendary Raids. There are no consumables that raise Shiny Pokémon rates.