The super snow will be useful. In order to produce super snow blizzards, each parent must have a gene for snow and also for blizzard. If one of the parents is snow and one is super snow, all the offspring will be snow and some will be super snow. If both parents are super snow, all the offspring will be supersnow. I feel strongly that breeding more enigmas is not a good idea because of the enigma syndrome and the likelihood that symptoms may not appear until into adulthood in which case the animal has been bred already and is now potentially passing on the syndrome gene (assuming that it is hereditary). Besides, enigma will do nothing for your blizzard/supersnow project.
Aliza