The Vast Untime can be spammed to Crowd Control as many enemies as possible while also breaking every single crate/box in the entire map. This allows you to find hidden items on the map while also keeping enemies from attacking you. We subsume an ability that allows us to more easily gather loot or one that increases our movement speed.

Pull is chosen so we can abuse [Greedy Pull] on larger tileset rooms. Due to the low duration and strength we really don't have many other options. Fire Walker's movement speed doesn't scale with Strength so it's a decent option. Molt and Infested Mobility need mod swaps to work efficiently.

Any ability other than The Vast Untime can be replaced. [Xata]'s Whisper is the weakest ability in this build so it should get the cut.

Range and Efficiency are the only two important stats in this build. [Streamline] only provides another 15% Efficiency but can be swapped in over [Greedy Pull] if you are on a tileset where it isn't useful.

Strength and Duration are far less useful. [Greedy Pull] and [Rolling Guard] can be swapped for more of either if you choose a different ability to subsume.

[Loot Detector] and your companion's loot detection mod should be enough to cover the 70 meter range of The Vast Untime as you break boxes. [Cunning Drift] can be swapped with [Thief's Wit] on extremely large tilesets.

Arcane Agility is a flex slot. You can use Arcane Momentum if you're shooting enemies while looking for loot around the map.