Characters with this trait are weak to a certain damage or effect type. They increase damage of Y type by X after any other mitigation and suffer a -10 penalty per X to tests made to resist non-damaging effects of this type. If this trait would stack for a single damage type, instead only apply the highest value of X. Different values of Y damage type are considered different traits. In cases where the character is not making the Y related test, but rather a Y related roll is being made against one of their Characteristics, decrease that characteristic by 10 times X for the purposes of resolving that roll.