Psurlons are a highly intelligent race currently trapped on the Astral Plane who are sought after by those who wish to benefit from their psionic knowledge. They are highly manipulative and firmly believe in the superiority of their race as a whole. They use the unique conditions of the Astral Plane to further experiment and accumulate knowledge.
This is a companion discussion topic for the original entry at https://athas.org/articles/athasian-psurlons-part-2-servants-and-grafts