Aggravating Blow (3.5e Maneuver)

''Wanna know why Evocations make the best counterspells? *WHACK!!!* 'Cause ya can't cast any spells if ya get hit wicked hard!''

You can initiate this maneuver whenever you would make an attack against a spellcaster in the process of casting a spell, as long as that attack is not part of another maneuver or a full attack. You can initiate this maneuver as part of an attack of opportunity or as a standard action. Make a single melee attack. If it connects, the attack does 6d6 extra damage, and is considered to have dealt four times as much damage as it actually did for the purpose of determining the Concentration DC to avoid losing a spell, power, or other such ability.