Partial Carapace: A partial carapace is a thick shell covering the back and head that will reduce the damage done to the body by one half, if hit in those areas. It gives the mutant a basic armor class of 6.

Total Carapace: The total carapace is a thick shell that covers the entire body of the mutant. It reduces all damage done to the mutant by half and raises its armor class to 4. This shell is cumbersome, and it reduces its owner’s movement rate by one-fourth.