The Murder Blade is a relic Chaos weapon, that is used by Chaos Space Marines.[1]
Description
So deadly are the wounds it inflicts, that some believe the Murder Blade was forged using a shard of the Anathame, that caused Warmaster Horus' descent into Heresy. Regardless of its origin, the weapon is undoubtedly of eldritch provenance, for with a sacrificial ritual it can become the bane of a certain foe above all others.[1]
Sources
- 1: Codex: Chaos Space Marines (9th Edition), pg. 133 - Crusade Relics