Here is the front side of my 40K tarot card lithograph. It's the Daemone, a 40k-ization of the tarot card "The Devil". Rather than the generic image I could have done (a daemon with chained people almost just like the normal tarot card), I depicted a certain mutant psyker, chained and surrounded with slight evidence of his bondage within the mechanized hell of the Imperium yet armed and capable of freeing himself if he'll just try to. The aspect of being enslaved to one's own base emotions and nature (in this case his own twisted psi-talent being part of the equation) makes him a threat to himself and everyone else around him. Hence the stamped sigils in the corners. Beta Tertius - his grade as a psyker - very powerful but a hazard.
I thought that this would be an appropriate card for a very specific Inquisitor to have in his copy of the Emperor's Tarot, due to some lengthy backstory of my own devising.