Type: Epic
Sources: Dungeon Master's Guide v.3.5
Epic Level Handbook
You can cast a touch spell as 1 an attack of opportunity.
Prerequisite: Combat Casting, Combat Reflexes, Quicken Spell, Spellcraft 25 ranks
Benefit: Whenever you are allowed an attack of opportunity, you may cast (and attack with) a touch 1 spell as your attack of opportunity. This incurs attacks of opportunity just as if you had cast the spell normally.
Normal: Without this feat, you can only make a melee attack as an attack of opportunity.