Frostbrand

Hardmode Sword. Drops from Ice Mimics found in Underground Snow biomes. Besides its use as a regular sword, it fires an icy projectile towards the mouse pointer when swung. This projectile emits a fair amount of light, is not affected by gravity, deals the same amount of damage as the sword itself, and can pierce through a single enemy. This ability costs no mana, but has a small cooldown.