You become directly immovable and take only 1/2 damage. If you move volenteerily or involenterily from the point in which you have bound yourself, you lose all benefits. Directly immovable means that if "Locust Man" tries to push you over you won't budge, but, if "the Quake" sends a seismic blast powerful enough to tear apart the floor beneath you, you fall losing your benefits.

An immobile character can only attack at arm's length or with ranged weapons if possiable.