Ritual of the Woodland Bond

 
Prerequisite(s): Non evil alignment.
 
Benefit: You don't take any penalty on Tumble or Move Silently checks made in areas of undergrowth, and you treat such squares as if they were normal terrain rather than difficult terrain (see page 87 of the Dungeon Master's Guide). Heavy undergrowth, as well as other forms of difficult terrain, affects your movement normally. If you deal damage to an animal or plant that has not already dealt damage to you or to one of your allies, this benefit ends immediately.
 
Source: Player's Guide to Eberron