From Unofficial Ansalon Wiki
The static charge spell is an affect that once on a character, will charge itself up. Once it reaches its maximum capacity, it discharges into the surroundings. Those surroundings consist of any non-grouped creature in the room with you. It is a potentially risky spell to use, as you have no control over what it hits, but used in the right circumstances, since it is a lasting damaging affect, it can prove useful. The spell itself deals both lightning and energy based damage to whatever it hits. If a target is not found near the affected person, the static will ground out through them doing no damage to anything. Then it will start charging all over again. Rangers are currently the only class that can get this spell.