Invention Origin Enhancements (IOs) are a cornerstone of endgame character building. These are crafted enhancements that provide superior bonuses compared to standard store-bought enhancements. IOs can be slotted into your powers to boost damage, defense, accuracy, endurance recovery, and much more. Many IO sets also provide powerful set bonuses when multiple enhancements from the same set are slotted into a single power or across multiple powers.
Understanding which IO sets benefit your archetype and power sets the most is crucial. For example, a Blaster might prioritize sets that boost damage and critical hit chance, while a Tanker would focus on resistance and defense. Crafting IOs requires recipes, salvage, and influence, making it a significant investment. However, the power increase they provide is immense and essential for tackling high-level content like Incarnate Trials.