The arcanist can disrupt a spell effect or magic item by expending 1 point from her arcane reservoir. This acts like a targeted dispel magic with a range of touch. The arcanist can add her Charisma modifier to the dispel check. The arcanist must have the spell disruption exploit to select this exploit.
Pathfinder Roleplaying Game: Advanced Class Guide © 2014, Paizo Inc.; Authors: Dennis Baker, Ross Byers, Jesse Benner, Savannah Broadway, Jason Bulmahn, Jim Groves, Tim Hitchcock, Tracy Hurley, Jonathan H. Keith, Will McCardell, Dale C. McCoy, Jr., Tom Phillips, Stephen Radney-MacFarland, Thomas M. Reid, Sean K Reynolds, Tork Shaw, Owen K.C. Stephens, and Russ Taylor.