Needs review
Source: Quintessential Elf

Description: You are proficient in fighting on top of a flying mount.

Prerequisites: Mounted Combat, Ride Class Skill

Once per round, the character may make a Ride check to help his flying mount perform evasive maneuvers. Once per round when your mount is hit in combat, you may attempt a Ride check (as a reaction) to negate the hit. The hit is negated if your Ride check result is greater than the opponent's attack roll.

Special

By acquiring this feat, the character can use the Mounted Archery, Ride-By Attack, Spirited Charge and Trample feats on a flying mount.