Shem's Burning Gaze

Shem’s Burning Gaze is a magic missile
with a range of 24" and causes D6 Strength
4 hits (which count as Flaming Attacks).
The Wizard can choose to extend the range
of this spell to 48" and increase the Strength
from 4 to 6. If he does so, the casting value
is increased to 15+.