Advanced Delver's Training
Your extended forays into the Underdark have honed your senses and prepared you for nearly any situation.
Grandmaster Training 2,600 gp
You gain a +2 bonus to Thievery checks to disable traps and a +2 bonus to Dungeoneering checks to forage or navigate underground.
Power Encounter (Free Action)
Trigger: You make a Thievery or Dungeoneering roll and dislike the result.
Effect: You can re-roll a Thievery or Dungeoneering check, but you must use the result of the second roll, whether it is higher or lower.
Published in Dragon Magazine 389.