A powerful and commonly used spell for Knights. The type of damage a knight is dealing when casting this spell depends on the weapon he is carrying. If you use an enchanted weapon and cast this spell, it will lose charges as well (and make some damage with the element).
The minimum damage is half of the maximum damage. Exact damage formula is not yet known but at skill level 100 and with a 50 attack weapon, this spell causes between 120-240 damage approximately. If you use an Ice Rapier, it will break.