Your heroine crossed some dark power and has forever after been marked by its tainted touch. Beneficial magical powers and effects intended to aid her, including those cast by allies or even herself, suffer a –2 penalty to the arcane skill roll. Worse, if the roll is a Critical Failure, the caster is Stunned! The penalty applies if the Cursed character is within an area effect power or targeted by the Additional Recipients modifier.
The Curse has no effect on hostile powers.