Facet of Command

To obtain Facet of Command, load into The Impasse and make your way into The Divide. Keep moving through until you reach the prismatic chest, which should be pretty obvious. The wall opposite the chest should have multiple holes in it—jump through one to reach the start of this fragment's puzzle.

Inside this small room you jumped through is a machine that can transmat a scorch cannon. Pick the cannon up and shoot the three piles of white rock (two covering other machines, one that should spawn an arc charge). Both machines each need to be charged with ten energy on the dot—arc charges give two, solar gives three, and void gives four.

You'll find additional rock piles throughout this area to charge the machines—two toward the bridge just past the prismatic chest, and four toward where you entered the area from (none of which push past the region chest that requires a Lost Encryption Code). Deposit the charges to power up the machines (use two void and one arc in one, then two solar and two arc in the other, both equalling ten) to start a combat encounter. Pick up the key the boss drops to open the prismatic chest.