Roots of the Mountain

You crouch and set your feet flat on the ground, rooting yourself to the spot you stand.
While in this stance, you gain a +10 on checks to resist bull rush, overrun, trip attacks, and grapple checks made to resist a grapple. Any creature that
tries to move through your threatened area or the
space you occupy takes a -10 on Tumble checks.
You also get damage reduction 2/-. This stance
ends if you move more than 5 feet.