Ainz - Obsidian Sword Limitation

Ainz responded by descending.

The moment they passed by each other, he threw out the twin obsidian swords.

The [Obsidian Sword] constructs could only be used as an offensive tool and could not be used to defend oneself. That was because the obsidian swords suffered from a mass loss of durability if used to receive an opponent’s attack. If used defensively, the swords’ durability would rapidly diminish until they shatter.

Riku used the weapons around him to deflect the two swords that were soaring through the skies.

***

Volume 14, Chapter 4.1