In the Shadows of the Last War
When you hit with an attack using this magical two-handed sword, the target takes an extra 1d6 cold damage. In addition, while you hold the sword, you have resistance to fire damage.
In freezing temperatures, the blade sheds bright light in a 10-foot radius and dim light for an additional 10 feet.
When you draw this weapon, you can extinguish all non-magical flames within 30 feet of you. This property can be used no more than once per hour.
This massive, icy two-handed sword fell from the hands of a former warrior of Cyre turned bandit.
It exudes a power beyond that which is known to most in the current Age of Humans. Its construction is complex, involving techniques beyond (or lost) to current enchanters.
The runes carved along the length of the blade are not visible unless one is sensing the blade’s magical aura or is attuned to it. They are illegible to most modern eyes, but there may be some scholar of ancient languages, somewhere, that might interpret the writing.
An ancient intelligence seems to slumber within the sword, rumbling unknown words within the mind of those who hold it. These words, although not understood, impel the wielder to attune to the weapon, especially if the wielder wants to know more about it beyond the simplest of its properties.