War is the game of nations.
Plane War is a life-and-death game between two worlds.
Unlike the heroic legends in mythical novels, even though individual strength far exceeds the average, war in this multi-universe is still a game of "expenditure".
It's not that individual power isn't important, but if you're strong enough, you will always encounter stronger opponents, unless you're so powerful that you're a God Above Gods, comparable to the Twelve-Pillar. In the wars among races and planes, you are still just a chess piece.
Chess pieces are naturally expendable.
The war has entered its ninth day, but in fact, the Western Allied Forces have been fighting for ten days, and after two rotations of personnel, both sides' advanced combat power has been replaced countless times.
Quasi-Gods and even Deities have fallen in double digits.