FREEZING EARTH! WAHAHAHAHHAHA!
—A slightly unstable Imperial general watching Winter's Breath shells being tested
The Winter's Breath shell was an advanced piece of Imperial ordnance developed a century after the Battle of Yavin. It was unusual in the way that upon detonation it released a wave of pent-up liquid nitrogen which froze everything in ice, in a radius depending on the concentration of liquid nitrogen. It proved useful for terrain-altering tactics, as it could make surfaces unusable for vehicles and could freeze rivers for troops to cross. Nonetheless, it proved useless on hot planets such as Tatooine. It was usually fired from an All Terrain Variable Artillery walker.