Camus has battled heroes all season. Noble duels like that are fun and put his powers to the test, but don't have the same impact as taking down a demonic bad guy like Slash. The Rage Rune burns for a chance at destroying some form of evil, burns with the infinite power of Fire. What can Slash due to stop Camus? Whimper and weep. Speedy swordsmanship is no match for magic and all that Camus brings to the table. His innate toughness is only matched by his refined combat skills. Slaughtering Light like he has is no accident. Camus is no lucky scrub to get to the Finals, he's as strong as any Light in DL history, and is going to beat Slash down, then set his sights on settling a few scores in Middle.
