Fel Deconstructor

Source
This item drops from the following wyrmtongues in Suramar:
 * Abhorrent Artificer
 * Overburdened Taskmaster
 * Wyrmtongue Toady
 * Wyrmtongue Gorger
 * Wyrmtongue Scribe

As a quest objective
This item is an objective of A Different Source.