Orbital Ion Beam

Use in your command phase. Place two markers anywhere on the battlefield within 12'' of each
other. At the start of your next command phase,
draw a straight line between them and roll a D6
for each unit the line crosses over, adding 1 if
the unit is a BUILDING. On a 2-5, that unit
suffers D3 mortal wounds; on a 6+, that unit
suffers 3 mortal wounds.
You can only use this stratagem once.