Chapter 544: Chapter 544 - 523: Wind System Talent, Wind Glyphs and Gathering

The resources required for Lord-Level stage growth and evolution, calculated in terms of ordinary Origin Force Food: evolving from Age Period one to two costs about two million Source Stones; from two to three, about three million Source Stones; from three to four, about four million Source Stones.

And so on, increasing steadily with each tier.

The general rule is that to evolve to Age Period N, the cost is about N million.