The magic of Kamar-Taj actually adhered more closely to the principle of equivalent exchange.
They drew power from other dimensions, offering whatever they could afford in return.
Compared to Wizards who relied on their own magic power, they were like crooked referees who could change the rules of the playing field at any moment.
They used shackles fashioned from demonic laws in the ordinary world and sealed devils with books from Heaven.
Compared to the Sorcerers' practice of borrowing power as needed, contract magic was far more clearly structured.
Conditions agreed upon by both parties, along with a witness, established a connection through which each could obtain what they wanted.
Each had its advantages. Sorcerers could wield more power and gain access to more methods.
There were drawbacks, too. Certain beings might demand a higher price or set traps for the Sorcerers.
The advantage of contracts was that they set clear prices and durations. Until that time expired, the contract served as an impartial arbiter.
They had drawbacks as well. Even if you abandoned the power, you could not abandon the contract. You would have to keep paying the price until it was fulfilled.
"Tos, are you willing to enter into a contract with Freeze-Evaporating Warhammer, child of the Ancient Ice Dragon, who soars over Niflheim?"
John looked at his Battle Servant. Although he had little use for him, Tos's earlier display of loyalty had pleased him.
Amid the ice and snow, two men and a dragon stood on the frozen surface of a great river, one of the twelve glaciers formed from Hvergelmir's Spring Water.
The towering White Dragon, Freeze-Evaporating Warhammer, was grateful to the Dragon Speaker for freeing him from his servitude contract and was willing to repay the favor.
The slight Tos stood naked on the glacier,