This functions like keen edge, except it affects multiple weapons and requires your concentration. You select the weapons to be affected, and can only affect one weapon per creature. If a creature’s weapon exceeds the spell’s range, the spell ends for that weapon.
Section 15: Copyright Notice - Pathfinder Roleplaying Game Ultimate Magic
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.