some single IV duplicats for certain species.

[Spiritmon]

Well, something you do is know the egg group each pokemon have. Pokemon with diferent species but with the same egg group can be breed to make work, but the chance to get a egg its a little slow. For example, Raptorch belongs to two egg groups: Monster and Dragon, and Luxi belongs to the Dragon group. So you can breed together with each other. But to make the breed egg you want you need the female species you want to have a egg with a male from the same species or same egg group. The egg groups is: Water 1, Water 2, Water 3, Mineral, Human-like, Monster, Amorphous, Bug, Mineral, Flying, Field, Fairy, Dragon, Grass and Duplicat.