Verified answer

Yeah. I tried that with Metagross and Ditto and got Beldum. It worked.

You can breed these genderless non-legendary pokemon with a ditto but not with each other. And only ditto.

if u have a ditto u can dont believe every1 else i did it to breed beldum so i can have a metagross with a good nature

I don't think you can, but a Ditto can breed with almost everything so it might be worth trying.

no. sorry.