With the latest PTR build, the item levels of Aberrus, the Shadowed Crucible have been unveiled! Like in Vault of the Incarnates, the item level of loot will increased by 3 every couple bosses. This means that as you progress further into the raid, you’ll start getting higher item level drops.
Item Level Chart for Aberrus, the Shadowed Crucible
Below, we have item levels for all normal drops for bosses in Aberrus, the Shadowed Crucible.