Paroxysm

Malediction:
If manifested, select one enemy unit within
Synaptic Link range of this PSYKER or one
enemy unit within 18" of this PSYKER.
Until the start of your next Psychic phase:
That unit cannot fire Overwatch or Set to
Defend.
Each time a model in that unit makes a melee
attack, subtract 1 from that attack's wound roll.