The Zigadenus Brain Eater is one of many strange plants in the galaxy that posses psyker qualities. In this case, the plant exhibits temporary mind control over its victims. How and why these organisms came to harness warp energy is unknown, though it is a hotly researched topic by certain sects of the Inquisition.

The Brain Eater simply lies in wait until some creature happens to blunder by. The plant will attempt to dominate the individual's consciousness and then randomly trigger the organism's physical abilities. For Troops with guns in their hands, the Zigadenus Brain Eater is simply bad news. Men suddenly lose control of their bodies and attack their friends!