Ochial's Flaming Circle

Ochial's Flaming Circle
Skill: alteration/fire 18
Backlash: 15
Difficulty: 8
Effect Value: 26
Bonus Number to: effect
Range: 9 (60 meters)
Duration: 14 (10 minutes)
Cast Time: 6 (15 seconds)
Manipulation: control
The casting of this spell is begun by tracing a
circular area no greater than six meters in diameter and filling it with oil.
The caster lights the oil and invokes the power of the spell. A circle of flame
shoots up six meters and remains until the duration of the spell ends. After
the initial casting, the controlling mage may shrink the circle's circumference
down to a narrow jet of fire or, if it is not already at its maximum diameter
of six meters, he may expand it. The mage may not move the circle off of its
original center. The circle expands or shrinks at a rate of 60 meters per round
(it can only close and widen completely once per round, however). Anything
attempting to pass through the flames (whether voluntarily or because the
circle is now too small to hold it) will take damage equal to the spell's
effect value.