Cultivation for Beast Cards:

The best method was, of course, to have the subdued beast consume the natural treasures found in the beast world. The chances of advancing via this method were the greatest. It was like when the Purple Jade Condor consumed the Five-Colored Spiritual Flower and successfully advanced to dark gold-quality.

Next was gathering a few, or even dozens of complementary ingredients according to the attributes and characteristics of different subdued beasts, and concocting a beast card cultivating fluid from them, soaking the beast card in it to absorb the essence of the fluid, achieving the desired result of advancement.

The beast card cultivators on Mercury were doing exactly this.

The most arduous method was also the only method which beastmasters could attempt with their own abilities: devouring the corpse of an exotic beast of similar properties and absorbing the components that were useful to the subdued beast. There was a chance of advancing from that!