i have heard thet if you want to breed a genderless pokemon you need a ditto. dose that mean i can make a zekrom egg?
Legendaries cannot breed. The only ones that can breed are Manaphy and Phione.
This is because legendaries fall in the undiscovered Egg group, where not even with Ditto can Pokemon breed.
Undiscovered Egg Group
no, beacuse the legendaries in the anime can't lay eggs.