Hok'tar

Hok'taur is Goa'uld slang for advanced human. Such an advanced human would have a variety of abilities such as telekinesis and telepathy.

Hanka
The goa'uld Nirrti attempted to create a Hok'taur in order to have a host with supernatural abilities and tried to create one on two seperate occasions. Once trying to manipulate the people of Hanka in order to create a Hok'taur. This experiment was semi-successful as it gave Cassandra telekinetic abilities. SG-1 was able to capture Nirrti inside the SGC and forced her to cure Cassandra in exchange for her freedom.

P3X-367
P3X-367 was a planet where Nirrti took advantage of a people suffering from a plague to attempt to create a Hok'taur. Because the people of P3X-367 were suffering from a sickness, she offered them a cure. Instead of a cure, however, she manipulated their DNA with an Ancient machine she found there in order to create a Hok'taur. After each experiment failed, however, she built a time delay into there bodies which resulted in every cell in their body dying after a short period of time.

Episode References
Metamorphosis

Rite of Passage