Originally posted by the ninjak
Gotta love it. I was thinking more along the lines of Doc Manhattan existing within the 40K Universe. Creating clones in seconds, launching them amongst planets and jumping star systems at a whim. Multiplying within lets say 2 minutes amongst many galaxies all independent of themselves.Nestling amongst ships and and planets, some hiding and waiting to strike.
See, but a very powerful psyker would know he is there, and proceed to shut down his mind or blast his soul into ruin. From the other side of the star system, or in cases like Magnus, he could do it from the other side of the galaxy if he felt so inclined.
The Imperium itself has very powerful psykers at its disposal.