According to the feedback from the Myriad Spirit Beast Atlas, low-level skills consumed fewer experience points, followed by advanced-level evolutionary bodies, and finally, top-tier skills.
Besides that, there were relatively special circumstances. For example, analyzing the cause of a pet beast's mutation had also been a major drain on experience points.
But as of now, the most demanding consumption was for the terrifying Nanming Li Fire.
This was to be expected. According to Su Ping's guess, the ultimate form of the Nanming Li Fire might be a rank higher than even a super-rank skill. That was an entirely different domain.
Yet, even for the Nanming Li Fire, after breeding the fire seed of the Day and Night Fire from Little Flame, and after Su Ping gained a deeper understanding and formulated further hypotheses about it, the required experience points had only been twenty thousand universal experience points.
