Fighting from the back of a steed is second nature to you.
Prerequisites: Ride 1 rank, Mounted Combat, Spirited Charge, Trample, base attack bonus +6.
Benefit: The Cavalry Charger feat enables the use of three tactical maneuvers.
Unhorse: To use this maneuver, you must be mounted and charge a mounted foe. If your charge attack hits, you may make a free bull rush attempt. If the bull rush attempt succeeds, you move your foe normally, but his mount remains where it was.
Leaping Charge: To use this maneuver, you must be mounted and charge a foe at least one size category smaller than your mount. Make a Ride check at the conclusion of the move portion of the charge action. Prior to making the roll, determine the DC of the check: either DC 10 for a chance to deal 2 extra points of damage or DC 20 for a chance to deal 4 extra points of damage. If you fail this Ride check, you miss your target (no attack roll) and if you fail this Ride check by 5 or more, you miss your target and fall off your mount, landing in a square adjacent to the mount’s space.
Fell Trample: You can make mounted overrun attempts against more than one foe, resolving each attempt according to the overrun rules. Your mount gets a hoof attack against each foe you successfully overrun.
Special: A fighter may select Cavalry Charger as one of his fighter bonus feats.
Source: Complete Warrior, page 108.