Oh yes, you should evolve it, it will give rise to the shiny version of the evolved pokemon. So, if you don't have any other problem about evolution, you can surely evolve it.
It becomes another shiny pokemon. For example, if you were to evolve a shiny Grookey, it would become a shiny Thwacky. So, basically the same thing that happens when you evolve a normal pokemon. The only thing shinyness affects, is a pokemon's coloration.
Is it worth keeping shiny Pokemon? There is no statistical difference between typical Pokemon and their shiny variants. Being shiny doesn't give any type of advantage aside from bragging rights. For this reason, there are no restrictions on how and when shiny Pokemon can be used in-game.
It doesn't really matter unless you care about PVP. Cp is determined by base stats of a pokemon, the pokémon's level, and its ivs. Because evolving a pokemon only changes the base stats not the level or ivs, it doesn't matter if you power up a pokemon before evolving or after the cp it gets to won't change.
Shiny Pokémon remain shiny after being evolved. Also Pokémon cannot become shiny via evolving a non-shiny one.
While there are numerous other Pikachu's that wear special hats in the game, Detective Pikachu is the rarest shiny version, and it was only available during one of Pokémon Go's one-time limited events.
Evolving a shiny Eevee or an Eevee with a special appearance will result in a shiny or special-looking evolved form. For example, a shiny Eevee can be evolved into a shiny Flareon or a shiny Leafeon.
Is it worth evolving a low CP shiny? No because that does not do much for the CP, and it is more candy efficient to level it up after evolution (This applies to all pokemon), and either way there's no point in leveling up shinys as it is very difficult to get high CP shiny pokemon, let alone a high starred one.
Is it worth keeping 0 star Shadow Pokemon? Yes keep your shadow Pokemon unpurified. Shadow Pokemon works as angry Pokemon and will deal damage more faster then Normal or Purified Pokemon. The attack power of a Shadow Pokemon is boosted by 1.2x or 20%, making its fast attack hit significantly harder.
If you have a Pokemon that is in the highest or second highest IV tier, it really is not that far away from perfect Max CP. So evolving a Pokemon with IV's in the first or second tier is a good idea, you don't need to wait for the perfect IV's. Never power up a Pokémon before evolving it!
Why would you purify? The most obvious reason to purify is get yourself a 100% IV Shiny Pokemon. Even nearly four years after Pokemon Go released, this is something many trainers are still searching for. While this is good for your collection and bragging rights, the reason behind is purely aesthetic.
It doesn't really matter unless you care about PVP.
Because evolving a pokemon only changes the base stats not the level or ivs, it doesn't matter if you power up a pokemon before evolving or after the cp it gets to won't change.
Purified Pokemon will have better Appraisal and receive 2 points towards all their IVs. This can potentially bring a 2-star Shadow Pokemon to a 3-star if it's purified. Purified Pokemon will receive a significant boost in Combat Power (CP).
What happens if I purify a Shiny Pokémon? Purified Pokemon have a boosted friendship to the purifier, by 70 points, and in XD they have special moves they otherwise cannot get. They can only be shiny in Colosseum. In Go, they also have higher CP and lower cost to level up and evolve, and know Return.
Azelf, Mesprit, and Uxie are the rarest Pokemon in Pokemon Go because they're region exclusive. The three Legendary Pokemon spawn in the wild but only in the following regions: Azelf – North America, South America, and Greenland. Mesprit – Europe, Africa, Middle East, and India.
You're unable to transfer multiple Shiny Pokémon, Lucky Pokémon, or Buddy Pokémon with whom you've reached Good Buddy status or above at a time. Additionally, certain Legendary and some Mythical Pokémon (e.g. Mew, Celebi) are not able to be selected for transfer.
How rare is a 100 IV Pokemon in Pokemon go? The chance to get a 100% IV (15/15/15) Pokemon in Pokemon GO is 1/4096, or in percentage, 0.0244%. The chance to get any combination of IVs is the same and equals 1/4096. The game awards IV values using three random rolls, from 0 to 15.
However 0% pokemon are even rarer than 100% pokemon, since the former can never come from raids, eggs, research tasks or trades.
Research results
The chance to get a 100% IV (15/15/15) Pokémon in Pokémon GO is 1/4096, or in percentage, 0.0244%.
Purifying a Shadow Pokémon will improve their appraisal and reduce the amount of Stardust and Candy required for them to Power Up, Evolve, or learn a new attack. When Purified, a Shadow Pokémon will forget Frustration and learn Return, a Charged Attack that's exclusive to Purified Pokémon.
Every Pokémon (and Pokémon trainer!) is different. But, generally speaking, Shadow Pokémon do more damage, so it is normally worth purifying Pokémon. That's a big factor in deciding what to do with your Shadow Pokémon, but it doesn't necessarily tell the whole story.
So, Birthday Hat Pichu is the rarest Shiny Eevee.
How rare is female shiny Eevee Pokemon go? Researches show that there is a 1 in 450 chance that you might catch Shiny Eevee in Pokémon GO.
According to overall performance, the award for best evolution in Pokémon GO goes to (drumroll, please) Umbreon. Umbreon is arguably the most effective dark-type creature with the highest PvP potential in the game. Trainers have long hailed Umbreon as the greatest Eeveelution.