So their power output was costing them 2.26% of their lifespan and 2.22% per second. With this kind of consumption, they wouldn't be able to last 45 seconds at their peak. But they were not at their peak. They were halfway dead, so they would barely last 22.5 seconds.
And this price had to be paid even though they were producing the same amount of power couldn't do anything to each other. After all, if they don't take on this cost to maintain their power, they would pay a greater cost when the enemy hurts them.
When Loki saw this situation, he was sure that they were at an impasse. But the dragon proved him wrong when it rushed at him to attack him.
By this time, the dragon couldn't maintain its army of copies. In fact, it couldn't create its army of copies because it had used all of its power and Divine Metacs to raise its defensive power to its limit.
