Ghoulbane - Quest or only from drop?

[Mignart]

Straightforward question - Is it possible to attain Ghoulbane via the quest line (in the wikki) currently or only via drop in Guk?

Thanks

[Cen]

You can't do this Quest until the fear rework patch and warrens

[Mignart]

Ahh gotcha. Okay thanks!