Nothing, since none of them can breed.
Chat with our AI personalities
You find latias by first going to the TV at your house in littleroot town after you've beaten the elite four. The TV will say there was reports of something flying in the sky, and your mom will ask you what color it was. ( Say red for latias, blue for latios). Next, buy some max repels, put a level 30 Pokemon at the front of your party, put apokemon with sweet scent in your party, and go to a very grassy area. If you use a max repel and sweet scent, you should be able to get you lati! (Note: you must have a master ball to catch lati.)If you wish to find a Latias or Latios you have to migrate them from one of the three GBA saphire, Emerald, or Ruby.
the you put in the daycare for a darkrai egg is a ditto
Most Pokémon, even genderless, can breed with Ditto. It turns out to be the species breeded with Ditto, but always the first evolution. So you'll get a Chimchar again, even if you put Ditto and Infernape to Daycare.
Nothing really, they only grow levels.
Nothing without cheating due to the fact mewtwo cant breed.