The Folk-of-brilliant-mind thanks to their unique biology are capable of effectively self cloning for long periods of time. The-most-copied-one is a notorious tale meant to instruct in the dangers of self replication for too long. They once ruled as Head-mind of the Fair-and-just-rule-of-minds for nearly 300 years, simply reproducing a clone every few decades to renew their body but maintain their mind. In this way they continued for those three centuries until finally they was incapable of reproducing any longer. Mutations built up over time which inhibited early stages of growth, leading to their final death of old age in which they produced no offspring and left nothing behind to carry the legacy.
A legacy it was too. The Mind-destroying-power-maker was constructed under The-most-copied-one’s instruction and leadership. They expanded its reach, utility and purpose over the next couple centuries until they passed. Even their passing was a legend in of itself, many believe the first mind ever extracted into the Extensive-historical-record-machine was The-most-copied-one’s.