Complex sentence: The setting has been recently described as a time when "swords have changed to guns" and the arcane arts are outlawed by the Liltian Kingdom, and magic is given to a selected few, ones known as the Crystal Bearers.
Split into simpler sentences: The setting has been recently described as a time when "swords have changed to guns" and the arcane arts are outlawed by the Liltian Kingdom. However, magic is given to a selected few, who are known to others as the Crystal Bearers.