A single six-sided die of randomly chosen color and style, with an engraved word balloon containing the phrase "SON OF A BITCH!" inked in white in place of the "1" side pips. The ink for the other sides may be in a different color.
Chaos Space Marines that have suffered the ill-fortunate side effect of the Rubric of Ahriman. Their witch blessed guns are great at tearing through elite infantry and they are well adept at shrugging any small arms fire.