"I can't believe that not long ago I was considering doing stuff like this." He sighed in disgust after pointing various strings of runes at Kamila.
Forbidden magic wasn't much different from regular magic unless one knew where to look. Then, it turned out to be a deadly trap whose cost and consequences were unknown until the spell was cast.
What doomed most mages who dabbled in forbidden magic was the fact that the runes of such spells could produce any kind of effect as long as the sacrificed life force and mana were enough but no way to know how much "enough" actually was.
Regular magic succeeded or failed based on the amount of mana stored in the mage's core. No matter how quick and skillful at chanting a yellow-cored mage was, he could never cast a tier four spell.
Every attempt would leave him exhausted and inflict upon him the effects of mana abuse but that was it.