The Navigators Blades

The Navigators Blades are four magical swords created from the DnD 3.5e magical items table. It was then put through the DnD 5e magic items table to tell the history of it. The blades are wielded by the Fangs of The Howling Wind.

Abilities
The Navigators blades are a set of four minor magically classed military styled sabres. The swords are storing a 3rd level Ranger Wind wall spell, anyone who wields a sword can cast that spell. It is a protector's sword. It was made by someone who lives in the sky, in a community of people who live on flying vessels. It is light for its size, and it is like it floats in the wielder's hand. They make a sound as if the wind is howling and screeching. This is to signal to other ships that you are about to use the blade and your ship is under attack

The bearer of a blade is not harmed by high or low temperatures

If used alone a blade is able to create a windwall large enough to protect one side of the city, but if all four are used together they can wall the entire city. This is called "Calling the Aegis" a ritual that requires all the fangs to work with complete synchronization. If even one fang is out of sync, the unstable Aegis could scatter the entire city

Features
Inside the blades is the breath of the storm, a cataclysmic storm called "The Terminus"

A Navigators blade is passed down when a person inherits the title of Fang.

It was created in the City of Barometris as a system of protection for the various vessels of this flying city