The Azure Serpent Leaders of the Azure Serpent Realm are mostly peace-loving beasts that like to sleep most of the time.
For them, becoming powerful was not for the sake of dominating the world; instead, they believed that with enough strength, no one would dare to disturb them from their sleep.
With enough strength, even if the entire world gets destroyed, they could continue to sleep without worries.
And to increase their strength, the fastest way was to consume lots of Perfect Quality Azure Profound Grass in a short time.
The fewer than 1000 Perfect Quality Azure Profound Grass were nowhere near enough to help them progress their strength or their minions' strength.
Most importantly, almost all the Azure Serpent Leaders have reached the end of their potential, and to break through to higher realms, they have to evolve.