Mounted Combat

Heroic Tier
Benefit: While you are riding a creature, it does not take the normal -2 penalty to attack rolls that is imposed on mounts. In addition, the creature can make any Athletics, Acrobatics, Endurance, or Stealth checks using your skill check modifier (not including any temporary bonuses or penalties) in place of its own.

Update (4/29/2011)
Removed mount keyword power dependence on this feat, and clarified the language to comply with Rules Compendium.

Published in Player's Handbook, page(s) 199.