Elven perception aura. This feels (like has been said, although I cannot be bothered to track down the post) like the Dodge of 4e. The radius is *just* large enough that, most of the time it applies to the full party, except of course for the not-in-fact-uncommon cases of combat, or single-file corridors with large parties. Lets not even get into line-of-sight issues and corners. The bonus is small, and tracking it fairly screams "tedious". It isn't a fluff linchpin ability, so why include it at all? I thought part of the goal of 4e was to clean up such effects, with "effort to track">"reward".