Ghost-mist

Ghost-mist is a spell that has a casting value of 5
and a range of 6". If successfully cast, pick 1
terrain feature within range and visible to the
caster. Until your next hero phase, visibility
between 2 models is blocked if a straight line
1mm wide drawn between the closest points of
the 2 models passes across more than 3" of that terrain feature. This effect does not block
visibility to or from models with a Wounds characteristic of 10 or more.