Cursed swords

A group of 28 swords that one of the Souzougami, Gurafikko-Sama created, from the bones of King dragon.

Fractured Soul (Seishin Kossetsu)
A sword whose blade can extend out up to 10 meters, when this happens the wearer loses the ability to wear touki.

Owner: Meatball

Inscription-less Sword
A sword that doesnt lose its edge, Casper obtained this sword from Rin.

Owner: Casper

Yakiru
A silver shortsword whose cuts only affect the one who received them after the blade is sheathed.

Dagger of Light
A golden shortsword who gives the owner an ability with swords equal to a regular intermediate swordsman (level 5).

Owner: Blu (Silent Fitts)

Tachi
A sword that absorbs blood and doesn't rust.

Owner: AlterAsh

Divine Swords
The Divine Swords are seven swords that have powers far greater than the other blades created by the Souzougami.

Eagle Wing (Washi Hane)
A hand-and-a-half saber that makes the user ten times lighter. Rin obtained this sword from a dungeon he explored.

Owner: Rin Est

Wakizashi
A sword that can weaken or strengthen the force of gravity in a 10 meters radius.

Owner: AlterAsh

Sun Gaze (Taiyō Shisen)
A sword that allows the user to be faster the more sunlight there is

Owner: Bwilly

Trivia

 * It's explained in Season 6 that only three of the seven divine swords are still around, the rest is missing.
 * The sword Wakizashi is worth around 100,000 Omnicoins.