Never been a too common item, nonetheless it's still obtainable through nightmare crates at vendor so their quantity isn't limited, I think it was lootable in the nightmare raid as a boss loot.
And since now can't really use this weapon efficiently along Dozer axe (gotta use tb first then Dozer axe and in case mobs scatter u gotta either kill and ignore pull or wait for dozer proc to wear off and pull again). I don't think adding this would benefit anyone at all.
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