A 3-foot-long, blazing beam of red-hot fire springs forth from
the character's hand. The character wields this bladelike beam as
if it were a scimitar. Attacks with the flame blade are melee
touch attacks. The blade deals 1d8 points of damage +1 point per
two caster levels (maximum +10). Since the blade is immaterial,
the character's Strength modifier does not apply to the damage,
which is all fire damage. The flame blade can ignite combustible
materials such as parchment, straw, dry sticks, and cloth. It can
harm any creature who is harmed by magical fire.
The spell does not function underwater.