Greater Power of Hysh

Greater Power of Hysh has a casting value of 7.
If successfully cast, pick up to D3 friendly
Lumineth realm-lords units with the Sunmetal Weapons ability that are wholly within 18" of the
caster and visible to them. Until your next
hero phase, the Sunmetal Weapons ability of
those units causes mortal wounds to be inflicted
on an unmodified hit roll of 5+ instead of 6.