Crippling Vertigo

Crippling Vertigo has a casting value of {6}. If successfully cast, pick 1 enemy unit wholly within 18" of the caster and visible to them. Until your next hero phase, roll 2D6 before that unit makes a normal move, a charge move or a pile-in move. If the roll is greater than that unit's Bravery characteristic, it cannot make that move.