Your shield bash produces a powerful kick.
Prerequisite(s): Shield Slam.
The damage dealt is equal to 1d6 points per 2 tiers you possess. As an immediate action, you can expend one use of mythic power to add your tier to your combat maneuver checks when resolving a bull rush made due to Shield Slam.
Pathfinder Roleplaying Game Mythic Adventures © 2013, Paizo Publishing, LLC; Authors: Jason Bulmahn, Stephen Radney-MacFarland, Sean K Reynolds, Dennis Baker, Jesse Benner, Ben Bruck, Jim Groves, Tim Hitchcock, Tracy Hurley, Jonathan Keith, Jason Nelson, Tom Phillips, Ryan Macklin, F. Wesley Schneider, Amber Scott, Tork Shaw, Russ Taylor, and Ray Vallese.