Power-wrought blade

From A Wheel of Time Wiki

Power-wrought blades are rare weapons that have had their metallurgical structure enhanced by the One Power. They never need sharpening and are immune to corrosion and rust. Only with great difficulty can they be broken or damaged - possibly only with the One Power itself, or another Power-wrought blade.

Most, if not all, were made prior to the Trolloc Wars, by which time Aes Sedai were forbidden from making weapons by the Three Oaths. Many date from the War of Power, and so may have been forged with either saidar or untainted saidin. While most Power-wrought blades are in the form of swords, the ashandarei carried by Matrim Cauthon is a spear-based example. Due to their rarity and durability, they are extremely sought after weapons and command a high price.

During the War of Power blades made for officers or Nobility would be decorated, often with a heron, however blades made for a common soldier would be plain. Other than the mark there is not any known difference between the two types of blades. After the War of Power the surviving swords were so coveted that even the blades made for commoners often found their way into the hands of nobility, or even kings. ^[1]

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