>>14601414You put them in and they may or may not make an egg, it all depends on a Pokemon "egg group". However, any Pokemon will breed with a Ditto. So, the ideal strategy is to use a foreign Ditto with say for example a Feraligatr, with the hopes of getting a shiny Totodile.
You put them both in the day care and ride along the straight line in front of the day care. Notice how every day care ever has a long staright line in front of it, it's for hatching eggs because eggs hatch depending on how many steps you've made with the egg in your party.
How have you never done this?