The highly effective nature of the KalDru deraks and the larger belderak has been met with much approval by the Enarii council. However there have been many losses to the more agile Empire herders with their long range slingstaves and this has prompted NuraSen Plutom to push his engineers to develop yet more deadly weapons. The most recent of these inventions is the derakar, which is capable of firing rapid volleys against the enemies of the gods.

Source: The Twilight Traveller Issue 6