Hunters Mark
(Dragonmarked, page 141, DnD 3.5)
[General]
Your dragonmark makes it easier to hunt and kill your favored enemies.
Prerequisite
Favored enemy, any true dragonmark.
Benefit
Your dragonmark grants you an additional +1 bonus on Bluff, Listen, Sense Motive, Spot, and Survival checks when using these skills against favored enemies. Likewise, you gain an additional +1 bonus on weapon damage rolls against such creatures.