Training
The two beasts looked at Lothur's confidence and did not like that.
They knew this place was special and that whoever entered there would reap great rewards if they survived. They had experienced the best of what this place had to offer when they were weaker and had more points for improvement.
Only the benefits they were used to were far less than what Lothur had gained so far. After all, normally, beasts, and even humans, only had one or two elemental affinities, which greatly limited the opportunities for those who entered this place.
At the same time, having an affinity for something was not so simple. Not everyone with an affinity for wood, for example, had the same level of compatibility!
Therefore, the effects that each one who entered the Immortals Well suffered were different and, on average, were lower than what Lothur had already achieved.