Benefit: The magus can expend 1 point from his arcane pool as an immediate action after hitting a target with a weapon attack. All damage from that attack (including damage from a spell cast using the spellstrike ability) is considered continuous damage for the purposes of any concentration checks made by the target prior to the beginning of the magus’s next turn.
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.