Highly anticipated for PC users, a New Rarity of Gear: Omega Items was introduced for Console first. These are to replace Unique items on PC in the coming months but with different tuning than what's currently slated for consoles.
What are Omega Items? Omega items are stronger than Cosmic rarity items. They allow us to tear down some walls and give you guys new ways to itemize your favorite heroes. You’ll be able to discover 30 new Omega Items designed for heroes of all types. Omega Items contain all the valuable affixes you appreciate on your normal Armor Slots, except these also roll a new affix thematically named, which can stack up to 5 times!
An interesting feature is that Omega Items are also set-based.
This means that the more items you equip from a certain set, the more bonuses will be applied to your hero. These sets are not exclusive to any one particular hero. The set bonuses can range from simple bonuses like enhancing powers with specific keywords (like Fire or Force), to gameplay altering affixes.
An example of this is Gamora’s Garments. One application of this set is to itemize your gear away from Critical Hit Rating, and instead, focus on pure damage to compliment the stacking Critical Hit Rating you gain each time one of your attacks does not Critically Hit.
Notice that you are stacking Critical Damage here to +100% and increasing your Critical Hit Chance until you do actually Critically Hit. Also, you can mix and match many of the sets. If you want the 2 bonuses from one set and 3 bonuses from another set, you have that freedom.
To read more, check out the source links below.