Wizard › Scrollmaster

Antimagic Field

Source: Ultimate Magic, p. 94

The first time a spellcaster attempts to cast a spell within an antimagic field, there is a chance she will spontaneously gain a major spellblight. The caster must succeed at a Will saving throw (DC 15 + the caster level of the antimagic field or DC 23 if there is no caster level for the effect).