King's Savior

King’s Saviour is a green plant with spiked foliage and tiny yellow blossoms that can be found growing on the western shore of the Northern Forest in Serpent Isle, near mushrooms. An arrow treated with king’s saviour would put anyone stricken by it into a deep sleep.

The Avatar uses this method to incapacitate Draygan.

Trivia

 * King's Saviour may be a pastiche of "King's Foil," a plant that had healing properties from J.R.R. Tolkien's The Lord of the Rings.