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The '''Heavenfall Blades''' are [[master-crafted weapon|master-crafted]] [[powered weapon|power swords]] wielded by the highest-ranked members of the [[Dark Angels]] [[Chapter]]. The weapons were crafted using a single block of jet-black obsidian; according to Chapter lore, the block had formed the core of a meteorite that struck [[the Rock]], the Dark Angels' mobile [[Fortress-monastery]], in orbit around the feral worlds of [[Al Baradad]].^{{Fn|1a}}

The mightiest of these blades is the [[Sword of Secrets]], wielded by the [[Supreme Grand Master]] of the Chapter (currently [[Azrael|Commander Azrael]])^{{Fn|1b}}.

Small portions of the meteoric obsidian were also used to craft the [[Sword of Silence]], wielded by the [[Master (Space Marine)|Master]] of the [[Deathwing]] (currently Master [[Belial]])^{{Fn|1c}}, and the [[Raven Sword]], wielded by the Master of the [[Ravenwing]] (currently Master [[Sammael]])^{{Fn|1d}}.

It is said that some of the obsidian was sent to the other [[Unforgiven]] Chapters, so that their highest leaders may wield weapons crafted from this substance.^{{Fn|1a}}

*¹: [[Codex: Dark Angels (4th Edition)]]**^a{{Endn|1a}}: ppg. 43**^b{{Endn|1b}}: ppg. 46**^c{{Endn|1c}}: ppg. 42**^d{{Endn|1d}}: ppg. 44