How do you breed mythic monsters in monster park

I don't think there is any specific duo of monsters you can use to breed a unicorn, dragon or griphon. The main thing you want to do is level your monsters up. I have made a few mythic monsters using level 11 and higher monsters. Never a unicorn but I have one griphon and several dragons. Look for the yellow hybrid that has wings , horns and a tail. That one and the Mino is what made the last dragon, but like I said its more about the levels, because you will get something different every time.