Talk:Eggs/@comment-123.243.222.122-20120820072457/@comment-4830404-20120822161613

Of course, that math will change when they release new dragons. Also, the colors you use depend upon what you're optimizing for.

If you're optimizing for breeding time, you have to take into account how many Nests the player has available. If the player has 2 Nests or more, the breeding time average can be used. However, if the player only has 1 Nest, you must realize that highly variable breeding times will skew the average. If you get a Titan Dragon, and then you get a Life Dragon, and you only have one Nest with no gold to speed it up, you are effectively locked out for the entire duration of the Titan Dragon, and the 3 hour Life Dragon may as well be another Titan Dragon. In this case, a combo with less variable breeding times (say in the 8-14 hour range) will be more optimal, such as Blue/Yellow/Green/Purple, which has a minimum time of 8 hours and a maximum time of 20 hours with Common dragons in the 10, 12, and 14 hour ranges.

If you're optimizing for chances at rare dragons that you do not have yet, breeding time becomes less relevant. For example, I used Charm + Mist for my second Diamond because I wanted chances at my missing Planet, Mindvolt, Wizard, and Mistmoth dragons. That is a rather high average breeding time combo, but I preferred a chance at missing dragons over shorter average fail times.