Frost Giant

Frost Giants (フロスト・ジャイアント) are a race of giants that inhabit the Azerlisia Mountains.

Abilities
The Frost Giants are immune to cold, which meant that the Frost Dragons’ trump card of icy dragon breath could not harm them. The power of the massive weapons which the Frost Giants wield could not be overlooked, even by Dragons. If they come in numbers, the Dragons might well be defeated.

Trivia

 * It's stated that the Frost Dragons who had lost to the Frost Giants were used as hounds by them.