Create a new Rule named “Dragons”:

All Breeders are entitled to owning at least one Dragon. If at any time a Breeder has no Dragon, e may adopt one by naming it and choosing color for it. Once a Breeder has a Dragon, it’s Name and Color shall be recorded in the GNDT by its owner’s name (under Columns “Name” and “Color” respectively). A newly adopted Dragon cannot be named after any existing Dragon, Breeder or Dragonmaster. The color of a Dragon can be any of the ones defined as a sub-rule to the rule, “Colors”. The newly adopted Dragon becomes the Breeder’s active Dragon.

Create a new Rule named “Colors” with no text.

I’d like to get feedback on this before actually proposing any colors or color-related abilities. Also you might notice this rule is worded in such a way to allow having more than 1 Dragon per Breeder in the future, while allowing each Breeder just 1 active. Also I’ll leave stats for another proposal (Power and Defense, maybe?).