Je l'ai vu dans le NetBook of Feats. Voici la description:
IMPROVED MOUNTED COMBAT [General]
COPYRIGHT 2001, Carl Cramér
You may evade more than one attack to your mount in a round.
Prerequisite: Mounted Combat, Ride skill
Benefit: You may use your Ride skill and Mounted Combat feat to evade one additional attack each round.
Special: this feat can be taken several times, and stacks with itself.
Balance: 4.50 (Purp 4.50, Pow 4.25, Port 4.75, Comp 4.50, Rule 4.50)
www.datadeco.com/nbofeats/nbofeats009.html#Improved Mounted Combat
Shadowhal