Etna's Lost Dagger is one of those Rogue uniques that people talk about once they've got a build almost finished. It fits neatly into setups that already lean on non-physical damage, and it becomes even more appealing when you want Diablo 4 runes and other endgame gear choices to work together instead of fighting each other. The dagger only really pays off when you're playing around it, so it's not the kind of item you slap on and forget about.

The dagger's unique power is simple on paper, but it changes how a Rogue plays. When you deal two different kinds of non-physical damage, your Imbuement Skills gain 45% to 60% potency, and your non-physical damage also gets the same boost for 8 seconds. On top of that, Basic Skills become Imbueable. That last part matters more than it sounds. It opens up extra triggers, lets you weave in more attacks, and gives the build a bit more breathing room when combat gets messy.

Where it drops in Season 14

If you are hunting Etna's Lost Dagger in Season 14, the main place to look is Harbinger of Hatred's Hoard. This is tied to the Harbinger of Hatred boss, which sits in the Greater Lair Boss group. You will need a Greater Lair Key to open the hoard, and you have to be on any Torment difficulty. That makes the dagger an endgame farm, not a random world-drop lucky break. The important part is that it is listed in the Rogue loot pool, so you're at least farming with purpose instead of hoping for a miracle.

How to farm it without wasting time

The cleanest way to approach the farm is to keep your runs focused and your loadout built for speed. If you are already clearing Torment content comfortably, then the steps are pretty straightforward.

Reach any Torment difficulty so the hoard can be opened.
Farm or save Greater Lair Keys before you start the boss rotation.
Run Harbinger of Hatred and open Harbinger of Hatred's Hoard after the kill.
Check the Rogue-specific drops for Etna's Lost Dagger, Shrouded Gift, and Scoundrel's Leathers.
Keep farming instead of expecting a guaranteed drop, because the table only improves your odds.

That part is worth stressing. A lot of players burn out because they treat a target farm like a guaranteed reward. It isn't. You're dealing with an increased chance, not a fixed outcome. If you're short on currency for gearing or respecs while testing different Rogue setups, D4 Gold for sale can be part of the wider planning, but the dagger itself still comes from the boss hoard. In practice, that means you want repeatable runs, a build that clears fast, and enough patience to let the loot pool do its job.