Doomfire

The Doomfire Warlocks hurl bolts of blazing black
flame at their foes.
Pick 1 enemy unit within 12" of the casting
unit and visible to it. If the casting unit has
fewer than 5 models, that enemy unit suffers
D3 mortal wounds. If the casting unit has
between 5 and 9 models, that enemy unit suffers
D6 mortal wounds. If the casting unit has
10 or more models, that enemy unit suffers 6
mortal wounds.