Expert Tactician

(Complete Adventurer, page 109, DnD 3.5)

[General]

Your tactical skills work to your advantage.

Prerequisite

Combat Reflexes, DEX 13, base attack bonus +2

Benefit

If you hit a creature with an attack of opportunity, you and all your allies gain a +2 circumstance bonus on melee attack rolls and damage rolls against that creature for 1 round.