while most mages would think this an unnecessary addition to their list....ive found that with 5 charges it saves me on mana. its not a big hit....2600+ give or take...but thats 2600 pts more that youve hit for and didnt use a point of mana to cast. you can cast a heavy nuke, this bolt, and another spell all without having to wait for the spells gems to reset as long as its the second spell you cast.
not too bad....good luck