Lucius the Eternal - Great Crusade: After his elevation to the rank of thirteenth captain, Lucius had a reputation for preening arrogance. He would throw himself into any fight without hesitation and inevitably come out the victor. On Hallelujah Prime, Lucius shattered the heads of the six-armed sword gholems that protected the heretic Malachoir, using the hilt of his blade when he realised that its edge could not hurt them. During the pitch-dark battles under Olchite Mount, Lucius stormed out of an argument with the lord commanders and proceeded to hunt down and impale the thirsting xenos entities known as the Ragged Fiends one by one over the course of a single solar day.His blade was the fulcrum upon which the Fausch Revolution was overturned, and at Siegebreak, his was the sword that took the head of the False Dorn. Many solar months passed without Lucius taking a single backward step. These frequent displays of martial supremacy merely pushed Lucius' towering ego to ever greater heights. Though he saved his brothers' lives on countless occasions, he never missed an opportunity to crow about his largesse. It became increasingly clear that he took to the battlefield not because he believed in the Great Crusade's intention to unite Humanity, but to prove his superiority over the rest of the galaxy.During this time, Lucius was gently mocked by his fellow warriors for being "too pretty." Though he had granted a thousand scars, he had yet to earn even a single sword-kiss in return. It was this fact, twinned with the breaking of his septum at the hands of his peer, Garviel Loken of the Sons of Horus Legion, that led to the ritual scarification of Lucius' face and chest. No warrior was skilled enough to gift him a proper scar, he reasoned, so he would just have to scar himself.Sometimes the tip of Lucius' blade sank as far as a finger's width into his flesh, or carved a line into the skull beneath his close-shaven scalp. These self-administered wounds were seen by his battle-brothers as acts of strange but commendable piety. The truth was far darker. Over the course of the wars waged by his Legion, Lucius began to equate pain with success. The network of scars he had carved into his flesh became more and more pronounced, reflecting a dangerous masochism that had taken hold of his soul.Should Lucius be denied a chance to show off his perfect bladework, his petulance and spite would bubble violently to the surface. The counsel of his fellow Emperor's Children captain and friend, the level-headed Saul Tarvitz of the IIIrd Legion's 10th Company, helped Lucius see his own flaws for what they were. To his credit, Lucius made a genuine effort to allay them over the course of their friendship, but it was not enough.The reasons recorded for this disfigurement have varied. Some claim they were an expression of Lucius' "devotion and piety" towards the Chaos Gods, others that they were intended to deflect comments that he looked more like a boy than a warrior. In reality, Lucius had met a Slaanesh-corrupted Remembrancer and painter who accompanied the 28th Expeditionary Fleet named Serena d'Angelus.After showing Lucius her hideously scarred forearms, she explained that each scar was a memorial to one of her victims. Lucius, whose face was no longer unblemished after facing Garviel Loken in the training cages, understood better than anyone that his appearance would never be flawless again, and so scarred his face without remorse. After this meeting he added a scar to his body every time he met a worthy opponent, such as before duelling with his former comrade and best friend, Saul Tarvitz, during the Isstvan III Atrocity.