The Wild Area of Pokémon Sword and Shield has played a big part in fixing trade-based evolution requirements in the Pokémon series. The mechanic, which once functioned as an incentive to use Link Cables and wifi options, has aged poorly as new technology has become available, turning an achievement into a tedious headache for many. However, Sword and Shield included trade-only evolutions in the species that spawn in Galar's overworld, which speeded up Pokédex completion.
Trade-based evolution doesn't apply to many Pokémon species, with only 25 different options using the method out of the nearly 900 Pokémon currently in the games. Most require an item or a certain level of friendship with a trainer to evolve, only making the process of obtaining them more difficult. Unfortunately, trading for Pokémon evolution has never made much sense, as players who want to keep their Gengar, Gourgeist, or Milotic must trade right back. This makes the process not only tedious but a big waste of time in comparison to simply evolving when reaching a certain level with the right held item.
Related: Pokemon Sword & Shield: Best Things to Do After Beating The Game
Thankfully, Pokémon Sword and Shield did a good job of reducing the frustration surrounding trade-based evolution, with most Pokémon requiring the process appearing fully evolved around the Wild Area. This allows those wanting to skip all the trading to simply go out and catch a wild Golem or Conkeldurr quickly. Unfortunately, those who raise Pokémon from base evolutions must still trade to obtain the final form, which is a frustrating extra step for players hatching eggs for the chance at a high-stat Shiny variation of Pokémon like Abra or Ghastly.
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