Pokemon Go added Generation 3 creatures recently, which has excited fans around the world. However, the revelation of which monsters are hidden behind which eggs has more folks infuriated than excited. At the very least, Sableye, which was previously available during the Pokemon Go Halloween event, is now hidden in a 10KM egg. Players who want that Pokemon might walk have to walk 10KM or buy a super incubator just to get a one.
Let’s look a little closer at which other third generation Pokemon are found in which type of egg. The 2KM eggs could hold Poochyena, Zigzagoon, Wurmple, Spoink, or Gulpin. The 5KM eggs could contain Torchic, Mudkip, Treecko, Makuhita, Seedot, Shroomish, Skitty, Azurill, Wynaut, Duskull, and Shuppet. (Halloween event players will most likely already have Duskull and Shuppet.) It’s important to know though that Azurill and Wynaut can only be “caught” via egg hatches. Finally there are the 10KM eggs that may include Ralts, Slakoth, and Sableye.
I feel like Slakoth’s inclusion in the 10KM eggs might be an ironic joke, as they are sloths that don’t get around much. So they want you to kickstart their lives before they pop out of that bad boy. There are all kinds of other Gen 3 Pokemon that will be added to Pokemon Go as time goes on. That might make the current pool of egg hatches shift around. So it’s worth paying attention to information like this as time goes on.
Source: The Silph Road Reddit via Game Rant