An enhancement set is a group of enhancements that grants set bonuses when multiple enhancements from the set are slotted in the same power. Most set enhancements work like other enhancements, boosting one or more aspects of a power. The strength of these boosts depends on the set enhancement's level, not its level relative to the character. In particular, set enhancements are never outleveled by a character, and there is no maximum level to slot them. The minimum level to slot them is three levels below the enhancement's level, except very rare and superior archetype enhancements. Very rare set enhancements and superior archetype enhancements have enhancement values 1/4th higher than standard, but only exist as level 50 enhancements and can only be slotted by level 50 characters.