Ice dragons have a very low core temperature and need to stay cold in order to function. They often have scales that are soft and very delicate -- that do not usually provide heavy protection -- similar to bird “scales” and are made out of keratin. Their scales on occasion, are translucent and reflect the sheen of the sun’s light. They have a gloss coating on their body that helps insulate them. While it does not provide fire-proof protection, it does give them somewhat strong waterproof insulation to keep their own cold in and the heat out. 

Frost bite - Their fangs are encased in a sheet of magically enhanced ice that cause an individual frostbite and imbues numbness. 

Blizzard - Can cause anything from small precipitations of snow around them to harsh and wild blizzards. 

Ice Formations – The ability to create crystalline ice structures simply out of the existing moisture in the air.