"Low-level Valkyries' Counterattack"
A high-level beast in this world was already rare, and something many ability users couldn't get, but in the Valkyries' dimension, even a teenage beast was already a high-level beast.
There was no reason to use such a weak mount, and the Pegasus would have to go back and cultivate again before they could regain their previous strength.
Since how they gained their strength so quickly actually depended on the Valkyries, their strength would also dwindle in the blink of an eye without Valkyries.
But the Pegasuses who become the Valkyries' war mounts and survive after the war would also get a benefit.
They would collectively advance to a mid-level sacred beast with just one war.
It was because of this that many four-winged Pegasuses still fought to be the Valkyries' war mounts despite the risk of strength decline.