Fallion's Fabulous Fireball

The wizard Fallion devised this variation of the third-level magic-user spell fireball for use in close quarters or in twisting dungeon passages. It differs from the original fireball in two respects:

First, the area of effect is variable, ranging from 5 to 20 ft. radius sphere. This allows the caster to use it in cramped areas without fear of being engulfed in their own spell. The exact area of effect must be stated during spell-casting, but it need not be specified before memorization of the spell.

Second, Fallion's fabulous fireball may maneuver around corners prior to detonating. The fabulous fireball may turn one corner for every two levels of experience the spell-caster has attained. The magic-user must specify the path which the fabulous fireball is to take during casting, but (again) this need not be known prior to memorization. Thus, the magic-user might state that the fireball is to travel 50', turn 90° to the right, travel 20', turn 45° to the left, travel 30' more, then detonate. If the fabulous fireball contacts an object before completing its path, it detonates there. Living beings caught in the path must individually make a Reflex save to avoid the spell's path, saving a second time against its effects if the first saving throw is failed. Duration is considered to be instantaneous no matter how complex the fireball's path is to be. Range may never exceed the maximum limit of 400’ + 40’/level.

Fire damage is 1d6/level, to a maximum of 15d6.