Night's Edge

The Night's Edge is a high-end Broadsword melee weapon. It has an average attack speed, deals 42 damage, and has about the same reach as a Muramasa. When swung, the Night's Edge emits light similar to the Fiery Greatsword, but the effect is more subtle and does not last as long. Crafting this sword requires using a Light's Bane, a Muramasa, a Blade of Grass, and a Fiery Greatsword at a Demon Altar. As of the 1.2 update, you can use a Blood Butcherer in place of the Light's Bane. Prefixes to the crafting ingredients will not affect the final product. Some people say the hardest swords to get in the crafting recipe are the Fiery Greatsword because of the Hellstone and the Blade of Grass because of the Stinger so it's hard because of the dangerous biomes that you have to venture into to get the materials.

The Night's Edge is useful against airborne enemies that are difficult to hit with faster swings, although it is not a substitute for a ranged weapon. It is also strong against heavily armored enemies relative to other melee weapons.

Before 1.2 it was the strongest sword of the game. With said update, this rank was taken by Terra Blade. Despite this, it's still the strongest sword pre-Hardmode If it has a Legendary prefix it can have the same base damage as Tizona on the console versions and 9 more base damage than Excalibur. This sword remains useful well into Hardmode, as its base damage is higher than the Cobalt Sword and Mythril Sword.

Trivia

 * The Night's Edge is the only item crafted at a demon altar that isn't a boss summoning item.
 * The Excalibur and Night's Edge may be a reference to the game series Soulcalibur, in which there is a good sword called the Soul Calibur, and an evil sword called the Soul Edge. This may be a coincidence.
 * This weapon could be a reference to the Four Sword of the Legend of Zelda, particularly because the four swords used to make this are green (Blade of Grass), red (Fiery Greatsword), blue (Muramasa), and purple (Light's Bane), the same colors of the split Links.

History
light's Edge