When you cast a Signature spell, you gain 5 Arcane Power.
The following skills are Signature spells: Magic Missile Shock Pulse Spectral Blade Electrocute
"Heavy steel armor may turn aside a blade, but let's see how well it works against lightning!" —Larra Stormlash's infamous faux pas at the Royal Westmarch Joust
Note: Information on this page is based on a level 70 character.