Spellcasting Harrier

(Draconomicon, page 74, DnD 3.5)

[Epic]

Spellcasters you threaten find it difficult to cast defensively.

Prerequisite

Combat Reflexes

Benefit

Any spellcaster you threaten in melee provokes an attack of opportunity if he or she tries to cast defensively. You get a +4 bonus on this attack roll.