Mass Hypnosis

Select an enemy unit within 18" of and visible
to the psyker. Until the start of your next Psychic
phase, the target cannot fire Overwatch, fights last
in the Fight phase even if it charged, and must
subtract 1 from its hit rolls. If the target has a rule
that allows it to fight first in the Fight phase even
if it did not charge, then instead of fighting last in
the Fight phase, it fights as if it did not have that
ability and did not charge.