• Defeat Vex and Fallen on Europa for their residual Darkness energy.
• Use Stasis abilities against combatants on Europa.
"In Clovis's research, he discovered traces of Darkness energy in every one of his subjects. Humans, Vex, even animals. We know now Darkness truly does reside within us all. Further decrypting Clovis's journal has pinpointed our next decryption algorithm, but to get there, we must begin by empowering the Skeleton Key with Darkness." —The Exo Stranger