Astral Knights

The Astral Knights were known to be dour by temperament and guard their honour jealously. Even the most trivial of disagreements could easily escalate to the point where the symbolic shedding of blood seemed the simplest way to determine who was in the right. The only thing about death that mattered to an Astral Knight was that he make his final moments a testament to his faith in the Emperor, and the means to a victory in His name. Whoever met the conditions of the duel, be it first blood, or to the death, the duel would then cease -- honour having been satisfied.