E Major runes require armor at level 39 or above and provide four bonuses, (1) – (4).D Minor runes have no minimum level and have two bonuses, listed as (1) and (2).Additionally there are Legendary Runes which have the same function as Superior Runes. There are three tiers of runes, Minor, Major, and Superior, each with its own minimum level requirement, and providing respectively two, four, or six bonuses to obtain the full potential of the rune, your armor must include that number of runes. While underwater, aquatic headgear replaces the headgear, so that characters would need a seventh and matching rune to maintain the same bonuses. A complete set of armor can hold up to six runes, one rune in each armor piece.