This biting herbal draught bolsters the mental sharpness and defenses, proving effective to aid resisting mind-numbing drugs, mind magic, and attempts to attack or subvert the will. Each success rolled (at time of brewing) boosts WP by one and provides one die of defense against mental control/mind magic or drugs, two defense dice against psychic control. The protection of the Ever-Clear Draught fades gradually, losing one point per hour after imbibing.