No fighting art of the Children could afford to use the wings in every maneuver, or in every attack; they were too important as heat-sinks to risk by attack or exhaustion, and so every repertoire included much fighting with the four legs alone, the wings held out or flapped gently to cool the blood and the body. The management of heat, and by extension the management of exhaustion, was at the root of all such techniques. Even the Temples famous for flight, such as the Swarming Meteors, used this flight only to open the battle. An often decisive opening, to be sure, but after such exertion as required to pounce on their foes, the subsequent attacks were preferably terrestrial, intended to finish off an enemy previously grounded by that first charge -- at least until the body was cool and the way was clear to rise up and charge once more.