Vesper

"Of course," with a snap of cold pale fingers the dark lord disappears in a gust of smoke returning to the site he was originally on, on the material plane.

First he would keep his promise to extend the reach of the rivers. Finding a major river uses a small portion of his power(not enough for a creation point to be used) to create small tributories that stretch closer to nearby villages and towns. Sprinkling a fine mist into the main river he sows the seed of death, disease into the waterway. The disease would spread throughout the entire river system, and some who drank of the lifegiving elixir would fall ill, the weak amongst them would die and more followers would be secured for Vesper.

Returning to the path of the visiting god amongst men Vesper continues to visit the villages and towns of the people of the land. In the back of his mind he can hear the whispering of prayers directed towards him, he was satisified, those who prayed most fervently were granted the divine gift(divine spellcasting) it was only a pittance of power at first but as they devoted themselves more thoroughly to Vesper they would gain in power. Reaching out to all his followers in their dreams and prayers he plants the roots of their(and his) superiority amongst mortals and gods.