A New Race with Every Transformation, I Rule Them All!

[A Demon King of Many Races, Shapeshifting, Female Demons, Wish Fulfillment, Fallen Immortal Path, Mind Manifesting as the Great Sage (Great Sage's Divine Powers)]

What should you do when you can transform into anything?

"My king, you're finally back! We've been waiting for you for years!" Beautiful foxes circled Su Chen.

"It's getting colder. You probably don't feel like doing much, my king. Time to incubate some eggs." In a hot spring in the snowy mountains, alluring half-woman, half-snake demons stirred ripples with their blue-green tails.

Su Chen sighed. He had only wanted to gain the ability to transform into anything. How had he somehow become the king of countless races?