See Enchantment for information on enchanting Dragons, as well as requirements
Enchantment Materials are gameplay elements introduced in Update 2.3 as part of the Enchantment feature and they are used to enchant Dragons in order to increase their Base Attack and Base Health stats. They have five grades of quality and their shape and color vary according to the material's quality and the Element they represent. Lower-quality materials can be fused together in order to obtain higher-quality materials. Enchantment Materials can only be obtained from Enchantment Chests.