Improved Counterspell
( Player's Handbook v.3.5, p. 95)[General]
You understand the nuances of magic to such an extent that you can counter your opponent's spells with great efficiency.
Prerequisite
Required for
Dampen Spell (PH2) ,
Benefit
When counterspelling, you may use a spell of the same school that is one or more spell levels higher than the target spell.
Normal
Without this feat, you may counter a spell only with the same spell or with a spell specifically designated as countering the target spell.