Faerie Hunter (4e Feat)
From D&D Wiki
Faerie Hunter [Racial]
Your Faerie cleverly points out places to deal real damage.
Prerequisite: Kokiri Race, Ranger class, Faerie Guidance racial power, Hunter's Quarry class feature
Benefit: If the subject of your Faerie Guidance power has also been designated as your Hunter's Quarry, you gain concealment versus that enemy until the end of your next turn. In addition, you may count the distance between your Faerie Companion or yourself, whichever is more favorable, for the purposes of your Hunter's Quarry and the Prime Shot class feature.