Kystra
From Tardis Wiki, the free Doctor Who reference
The Kystra were a race of traders.
Technology
During their "Era of Embodiment", the Kystra had technology based on the manipulation of matter right down to the level of quantum functions. The Kystra sold their technology to the highest bidder. The Second Doctor suggested that the Kystra were the race who supplied the race who created Arkive with their technology. (PDA: The Wheel of Ice)
