Eld'ranoth, the Dragonbreaker

Forged by the famed blacksmith Haedrig
Haversack, this blade is less of a sword and more
of a blunt hacking tool. Blacksmith Haversack
was never known for his subtlety, and this weapon
measures nearly 6 feet long. Despite its absurd
size, however, it is strangely lightweight and may
be weilded in one hand.
This weapon deals an additional 2d6 frost damage
to dragonkin. The blade's metal is ice cold
to the touch, regardless of its surroundings.