Benefit: Whenever the ninja throws a smoke bomb, all living creatures in the cloud must make a Fortitude save or be blinded by the black smoke for 1d4 rounds. The DC of this saving throw is equal to 10 + 1/2 the ninja’s level + the ninja’s Charisma modifier. This trick cannot be combined with a choking bomb, but the ninja can combine a blinding bomb with a poison bomb.
Pathfinder Roleplaying Game Ultimate Combat © 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