Thread:Sylvandyr/@comment-5619126-20121014124324/@comment-5619126-20121027175043

I see, one step there is missing. If only 1 color is in the pool then it can breed a single-color dragon. If there's two colors in the pool, it can't breed single-color anymore - except if one color is diamond or if it's red/blue.

I think I got it now to write the rules :)