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The Yanghis dragon has been added to Dragonvale and is available for the next 7 days. Let’s look at the different ways of trying for one.
Starshine + Flicker
Yanghis is an Ornamental dragon, and has 2 other Ornamental dragons as a specific breeding pair. When breeding with Flicker it adds Plant, Fire, Earth & Cold elements. Starshine adds those 4 elements + Air. There are a lot of possible outcomes when breeding this pair together, to try for a 2% chance of breeding Yanghis.
With over 164.75% of set breeding percentages, there will be no regular hybrids, and the set % lower. Yanghis 2% drops to 1.21% and we have an average fail time of 14.21 hours. 57 attempts required to get a 50% chance of breeding one, which would take over a month. You have just over 13% chance of breeding one if you went non-stop all week
Cloning
Yanghis has a 4% chance of Cloning it when pairing another dragon with one in the Cooperative Breeding Cave. It adds Fire, Earth, Cold and Air, and the dragon with the shortest breeding time with those combinations is the Sandstorm, at 2 hours.
The 4 elements mean you have a chance of Rainbow and Double Rainbow, and the combination of Fire, Cold & Air also add the Snowy Olympus dragons in the mix. It puts the set % total at exactly 100%, so there should be no regular dragons available. This will be a good test for this breeding theory. So if anyone breeds a regular hybrid, I would certainly like to hear about it.
Just over 15 hours average fail time, and the 17 attempts required for a 50/50 chance. This means 10.66 days required for an even money chance to clone one. You will have 12 attempts without spending gems to speed up a breed, which would give you a 38% chance of getting one in the week available. Hopefully that 9% instance of Sandstorm dragons will allow for some speed ups, for more attempts, and a better chance of a Yanghis in the CBC.
Other Cloning Options
Just to check, I looked at the increased chance of using a Regular dragon with the lowest breed time. In this case I used Blazing.
It drops the average fail time by over 10 minutes, but the increase in set % actually drops the chance of cloning a Yanghis from 4% to 3.77%. It in increases the attempts required for a 50/50 chance by 2, and therefore the breed time for an even money chance to 11.77 days. You will also lose half the fails that are the 2 hour Sandstorm, so speeding up fails will be more expensive.
Yanghis + Sandstorm is the cloning recommendation, and your best chance to get one.
Good luck.