You assume a wide stance, digging your feet into the ground to become as steadfast as the mountain.

Encounter   ✦     Psionic, Stance
Minor Action      Personal

Effect: Until the stance ends, you can't be pulled, pushed, slid, or knocked prone unless you want to be. You are slowed while you are in this stance. You can end the stance as a free action.

Published in Player's Handbook 3, page(s) 78.