Any living being capable of reproducing could be treated as a renewable resource. Land though, was neither renewable nor could it be created easily unless one achieved the ability to stably terraform.
While Darius had that ability, he was not, as a matter of fact, Goddess Vena or even close to her level of power. When creating Faust, Vena had done more than just wave her hand to create 10 landmasses. Each landmass had been given its own specific set of rules, powers and laws.
Darius could at best, observe and manipulate rules, powers and laws but to create them? Hah.
As omnipotent as he might seem to the inhabitants of Faust, he was a far way off from exploring all the rules and laws this world contained, much less create his own. So even if he did use a mixture of magic and Transmutation to spawn a huge landmass and develop it into a continent, what would be its rules?
