Navigate to the encounter and item settings. While the standard randomizer can randomize wild encounters, advanced versions or companion tools like Save Game Editors (e.g., PKHeX) allow you to inject literal eggs directly into your PC boxes. Inject Eggs via PKHeX:
Common variants include the "Dupes Clause"—you can reroll an egg if you’ve already hatched that same species—and the "Shiny Clause," where any shiny hatch is immune to permadeath. Pokemon Emerald Egglocke Rom Download Gba