Complex sentence: Since the Wraiths were created by the Iratus bug absorbing Ancient DNA, the Wraith language seems to be a derivative of the Ancient language, and the two use the same writing system; the Wraith language is therefore relatively easy to translate by experienced Ancient speakers.
Split into simpler sentences: Since the Wraiths were created by the Iratus bug absorbing Ancient DNA, the Wraiths'language seems to be a derivative of the Ancient language, and the two use the same writing system. The Wraiths' language is therefore relatively easy to translate by experienced Ancient speakers.