Leap Attack( Complete Adventurer, p. 110)
You can combine a powerful charge and a mighty leap into one devastating attack.
You can combine a jump with a charge against an opponent. If you cover at least 10 feet of horizontal distance with your jump, and you end your jump in a square from which you threaten your target, you deal +100% the normal bonus damage from your use of the Power Attack feat. If you use this tactic with a two-handed weapon, you instead triple the extra damage from Power Attack.
This attack must follow all the normal rules for using the Jump skill and for making a charge, except that you ignore rough terrain in any squares you jump over.