Arcane bolt

Arcane bolt is a spell that has a casting value of {5} and a range of 12".
If successfully cast, at the start of any 1 phase
before your next hero phase, you can pick 1
enemy unit within range and visible to the caster.
That unit suffers 1 mortal wound. If that unit is
within 3" of the caster, it suffers D3 mortal
wounds instead of 1.