Board Thread:Breeding Questions/@comment-18075798-20130909155420/@comment-10773451-20130909163026

Platinum elements are Metal + Ice. So, try to breed it. But, you can also try with Pearl + Metal/Ice. The chances are better.

And, for Poo, legendary dragons are good. Breeding them with Mud, or Terra may works.

If you don't have any legendary dragons, try using two Hybrid Dragons(Like Mud + Petroleum).

However, Poo dragon is extremely hard to get by breeding, so you will not get it in the first time(It had taken 22 times for me).

Good luck! You can also read here