Due to a mystical bond, your study and use of the arcane arts are inextricably tied to metal.  While you feel you have access to mighty magical abilities, it can only be accessed by channeling it through the appropriate metal.  This ability allows you to cast the Heat Metal spell. When you cast this before your character achieves level 3, there is a "good" chance the spell will effect more than your intended target. This spell can't be used again until you have taken a long rest.