Nephis had not been dismissive when she answered the question posed by the Lord of Shadows…
How could one kill a Supreme?
After years of striving bitterly to maneuver herself into a position where resisting the Sovereigns was not a foolish, futile, and frivolous delusion, she had come to understand that the only plausible way to defeat them was to attain Supremacy herself.
Years ago, she had come back to the waking world after an eternity of being lost in the Dream Realm, defeated and broken. Back then, she had made a decision to join the Great Clan Valor, knowing that there would be no better way for her to come to know her enemy.
When Nephis killed a Nightmare Creature, she dissected the carcass to examine its anatomy and learn how to slay such abominations better. But she couldn't dissect a Great Clan… so, joining one was the best way to study the enemy from within.