Improved Counterspell

(Forgotten Realms Campaign Setting, page 35, DnD 3.0)

[General]

You understand the nuances of magic to such an extent that you can counter your opponents' spells with great efficiency.

Benefit

When counterspelling, instead of using the exact spell you are trying to counter, you may use a spell of the same school that is one or more levels higher than the target spell.