SRD:Exceptional Arrow Deflection (Epic Armor Enhancement)
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Exceptional Arrow Deflection
This shield functions like a shield of arrow deflection except that it can deflect any type of ranged attack (including spells that require a ranged touch attack) as if it were an arrow. Any time the bearer would normally be struck by a ranged attack, he or she can make a Reflex saving throw (DC 20). If the ranged attack has an enhancement bonus (or a spell level), the DC increases by that amount. If he or she succeeds, the shield deflects the attack. The bearer must be aware of the attack and not flat-footed. Attempting to deflect a ranged attack doesn’t count as an action.