Virtues of the Sons (Short Story)
Amit, the Flesh Tearer, captain of the Blood Angels duels the vicious gladiator Khârn, and Azkaellon of the Sanguinary Guard faces Lucius, Emperor's Children swordsman, as Sanguinius's chosen sons explore the twin aspects of their nature.
Sanguinius, primarch of the Blood Angels, confides to Horus his worries that by allowing their Legions and brother primarchs to embody only a single ideal they are failing as teachers. Horus is dismissive, but Sanguinius decides to organise educational duels for two of his most single-minded captains, Azkaellon and Amit. Azkaellon duels Lucius of the Emperor's Children aboard an oceanic warship, and although Lucius wins by drawing first blood by this point Azkaellon has already tackled him over the side, humiliating him in front of his men and robbing Lucius of the victory he wanted. Amit meets with Kharn on a desert planet that both their Legions have conquered in a joint action and they fight a brutal duel in a trench using axes and cleavers that leaves both badly wounded. When Azkaellon and Amit return to Sanguinius's side for a ritual combat festival of their Legion Sanguinius is disappointed to see that both have adopted their usual roles of defender and attacker, but during their fight notices brief moments in which they adapt to gain advantage, giving him hope that his Legion may survive after all.