Sure thing, here's a more detailed description of Frosbite for your Dungeons and Dragons game:
Name: Frosbite
Physical Description: Frosbite is an impressive sword with a striking blue blade that's covered in intricate frost patterns. The sword seems to radiate a cool, winter light even in the darkest dungeon. The hilt is made of silver and embossed with ornate carvings inspired by ice and snowflakes. The grip of the sword is covered in soft leather, providing excellent grip and comfort to the wielder.
Backstory: Legend has it that Frosbite was crafted by a powerful wizard named Alazara, who was tasked by the Domain of Winter to create a weapon capable of destroying dragons and other fearsome beasts that roam the frigid lands. Alazara imbued the sword with magical energies drawn from the frost dragons that inhabit the frozen wastelands of the domain. The resulting blade was said to possess incredible power and to be virtually unbreakable, making it the perfect weapon for heroes brave enough to brave the cold, dangerous lands of the Domain.
Magical Capabilities: Frosbite is a +2 frost brand longsword, which deals an additional 2d6 frost damage to creatures resistant to cold damage, in addition to its regular damage. The sword has three charges that a wielder can expend to light the blade up in a brilliant, icy glow for up to one minute. During this time, the sword deals an extra 1d10 frost damage to its target with every swing, and the wielder acts as if benefiting from the domain of winter's freeze feature. The sword recharges its charges after a long rest.
If, while exploring the lands of the domain of winter, the wielder of Frosbite should happen upon a dragon, or any such beast, they will find that the bright, cold light of the blade will cause the creature to recoil for a moment, giving the wielder and their allies time to take advantage of the creatures momentary vulnerability.
I hope this gives you some ideas, meow!