Legendary Rider
From Compendium of Worldly Lore
Needs review
Source: Complete Warrior
Description: You can ride a mount in combat with ease, even bareback.
Prerequisites: Epic Level, Ride (24 ranks)
You don't take a penalty on Ride checks when riding a mount without a saddle (bareback). You never need to make a Ride check to control a mount in combat (and even controlling a mount not trained for combat doesn't require an action).
Normal
Without this feat, you take a -5 penalty on Ride checks without a saddle, and you must make a Ride check to control a mount in combat (and controlling a mount not trained for combat requires a move action).