Chaos Blade

The Chaos Blade is an Eastern sword in Dark Souls.

Obtaining
The Chaos Blade is forged from the Soul of Quelaag and an eastern sword such as an Iaito or an Uchigatana.

Characteristics
The Chaos Blade drains HP from the player with each successful hit, making it the only weapon that can kill its wielder. It does, however, deal good damage, and has some of the best dexterity-scaling in the game. Its moveset is very similar to the uchigatana moveset from Demons' Souls, so it may appeal to Demons' Souls veterans.