The mutant emits a terrible smell, a combination of halitosis, flatulence, and unwashed flesh that is without equal, with a range of D6x2 yards. The stench affects all living creatures within this range, who make all dice rolls at a -10 or +10 penalty (as appropriate for the dice roll) until they are out of range. The stench persists even when the mutant is killed. The mutant's comrades are entirely unaffected by the smell - indeed, they are quite proud of it.