Frostbrand, Forgotten Realms Wiki

Frostbrand, or frost brand, weapons were designed to fight creatures with an affinity for fire. These weapons were particularly effective against creatures with a tie to the Elemental Plane of Fire. Magical flames could be extinguished half of the time by using a frostbrand. If ambient temperatures fell below freezing, the frostbrand was capable of emitting light just like a torch. Frostbrands also provided protection as a ring of fire resistance. Garavor, a broadsword frostbrand with a +3 encha

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