This Makes Gjallarhorn 1 Bell Caiatl (The Easiest 1 Bell Setup)

You can kill slightly faster with a more complex setup that relies on hitting more crits and using some rarer weapon rolls as well as timing finishers etc etc, but for people looking to start optimizing their Duality boss farms, this is an amazing place to start. The damage being mostly reliant on wolfpack rounds means the game sometimes fails to register damage correctly and chunks more health than we’re actually doing. In a normal kill you’d finish the boss off 1-2 rockets later while still keeping it a 1 bell (just seconds slower). Source of the clip (Duality 9:40 Speedrun) :