User blog comment:James12708/Reapers VS. Forerunners VS. Angels from Darksiders VS. Humanity from Halo VS. Council and humanity from Mass Effect VS. Imperium of Man/@comment-1440333-20130206000208/@comment-1683193-20130207072050

Psykers won't stop battlefleets of billions of ships, many of which are vastly larger than Imperium battleships.