Champagne Pastel Ball Python
One animal carrying both genes. Each one is inherited separately, so this combination is made by bringing them together rather than being a gene of its own.
Documented health finding on one of these genes
Champagne. Animals carrying this gene are widely reported to show a neurological head wobble similar to that associated with Spider.
The two genes
How one is made
Both genes have to come together in the same animal. The pairing that does it most directly is Champagne × Pastel, which works out every outcome and its odds.