Defence is a skill that determines how frequently you are hit by enemies. This skill also determines what kinds of armor you can wear. This includes: Bronze, Iron, Black, Mithril, Adamant, Rune, Granite, Dragon and MANY more. Ranged and Magician Armor can require both defence and either Ranged or Magic levels to equip. Players may not equip said armor if they only meet one of the criteria, Both Ranged or magic and defence need to be at appropriate levels before the armor can be equipped.