Howling Vortex

Pick a point on the battlefield within 18" of
the caster that is visible to them, and roll
2D6 for each enemy unit within 6" of that point. If the roll is greater than the value of
that unit's Move characteristic, or that roll is
a double, that unit suffers 1 mortal wound
and its Move characteristic is halved until the caster's next hero phase.