Eldritch Storm

Select one point on the battlefield within 24" of a FARSEER and place a marker. In your next
Psychic phase, FARSEERs that are within 24"
and have visibility to the centre of the marker can perform the following psychic action:
•Empower Storm (Warp Charge 5)
At the start of your next Shooting phase, roll one
D6 for each unit within 6" of the centre of the
marker. On a 4+, that unit suffers D3 mortal
wounds. That marker is then removed.