Spiritual Counter

 
Prerequisite(s): Any other Divine Feat, Ability to turn/rebuke undead.
 
Benefit: As a standard (Readied) action, you can expend some of your turn/Rebuke undead attepmts to counter another caster's spell, as though you had cast the smae spell yourself. You must spend a number of daily uses equal to 2 + the level of the spell you wish to counter.
 
Source: Complete Champion