Elyas steps forward and motions the team to form a circle.
"We are about to face psykers of the most insidious sort, so we must maintain the utmost resolve. I shall lead us in an Oath to the Emperor, so that we may keep Him in our hearts and minds."

Aware that they are on a time crunch, Elyas cannot perform the full hours-long suite of prayers necessary to properly invoke the Emperor's righteous fury, but he does his best to make his oath as inspiring as possible.