Causality was a thorny beast in the practice of magic. To bend reality, a wizard had to respect its rules. Was the effect natural? Did the caster truly understand the principles behind it? Was the expenditure of power proportional to the phenomenon invoked?
Of these, understanding the cause of a magical phenomenon was the critical factor, influencing both the spell’s success and its cost. Knowledge was the fulcrum on which magic pivoted.
The
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