Hereticus - Ascertainment

Ascertainment has a warp charge value of 6. If manifested, select one enemy unit within 12” of this psyker. Until the start of your next Psychic phase, subtract 1 from the Attack characteristic of models in that unit (to a minimum of 1). Roll 2D6; if the total is equal to or greater than the highest Leadership characteristic in that unit, then until the start of your next Psychic phase, when resolving an attack made by a model in that unit, subtract 1 from the hit roll.