Chariot Combat
(Sword and Fist: A Guidebook to Monks and Fighters, page 78, DnD 3.0)
[General]
You are skilled in chariot combat.
Prerequisite
Handle Animal skill
Benefit
Once per round when either of your steeds is hit, you may make a Handle Animal check to negate the hit. The hit is negated if your Handle Animal check is greater than the attack roll (essentially, the Handle Animal check becomes the steed's Armor Class if it is higher than the steed's regular AC).