What's the most important thing in cultivating an army of minions? First, you have to be able to feed them, fill their bellies. If you want your horse to run fast, you should feed it the best grass mixed with high-quality soybeans.
Take the White Dragon Legion that Muria is witnessing now as an example. Clodia's first task is to sustain them, then to train them, to make them strictly obey orders, learn how to coordinate with each other, and become a unified force.
God only knows how much time and effort Clodia has poured into this White Dragon Legion. However, the more initial investments made, the more returns one can get once the legion is fully formed.
Clodia, the Frost Queen, dares to undermine four countries in less than a month, and this confidence is based on this legion, not the Crystal Dragon Philomena who adopted her, nor her family behind her. She never thought of relying on the power of the Gem Dragon Clan; she only wanted to rely on herself.