Benefit: The magus can reroll any concentration check he has just made with a +4 bonus. He must use this ability after the roll is made, but before the roll’s outcome is determined. The magus must take the second roll, even if it is worse. The magus can use this ability once per day.
Pathfinder Roleplaying Game: Ultimate Magic. © 2011, Paizo Publishing, LLC; Authors: Jason Bulmahn, Tim Hitchcock, Colin McComb, Rob McCreary, Jason Nelson, Stephen Radney-MacFarland, Sean K Reynolds, Owen K.C. Stephens, and Russ Taylor.