Its feathers protect it from the extreme cold, enabling cohabitation with Bluejaice. They have lived in harmony for many years.
Cardinfern's feathers can burst into flame in order to utilize fiery attacks. Doing this harms neither it nor its feathers.
A Pokemon that has lived alongside Bluejaice for many years, the cohabitation gave this Pokemon a resistance to cold. When it senses danger, its feathers burst into flame and it charges into battle.