In 8.0.1 I farmed this Technique at Soul Engine Apocolypse slightly south-west of Illidari flightpath in Azsuna. It took 7 mins and 30 secs. I got 55g worth of grey items and paid a repair fee of 5g 39s. I also received 4 BoE greens. On Us Dalaran the glyph currently sales for a profit of 225g with the sale rate of .08 which is decent. So worth the farm.

Комментарий от Artnerd

Been at it for over an hour as the mentioned location; Soul Engine Apocalypse, nothing dropping. Blizerkian got really lucky.
Finally, after another half hour it dropped.

Комментарий от xhlb69x

If there's a Legion invasion in Highmountain, I got this glyph within a couple minutes of farming at 56, 54 while the Wolves of the Legion WQ was up.

Комментарий от Kryptaria

Dropped off a Felfire Imp in the caves under Deadwind Pass outside Karazhan while I was doing the Return to Karazhan attunement quests. Level 120, 48 Legion Inscription.

Комментарий от Aisenfaire

Lazy method:

1. Fly to Illidari Stand, Azsuna.
2. Go to /way 43.2, 44.1
3. Tag all the Страж Скверны - штурмовик and Страж гнева - завоеватель coming in an endless stream. The towers and npcs will finish them off for you.
Bonus: If you don't have Техника: символ крыльев Скверны yet, the Злобный ловец and Яростный сквернотопырь here drop it, so tag them as well.
4. Loot!

Easy mouseover macro for tagging (replace Moonfire with your class ranged ability):
/cast Moonfire

It took me about 30 minutes to get it.

P. S.: If you use this weak aura (credits to the author): https://wago.io/Sygzoj6R7z , you can just type in 'Technique' where the loot name should go, and you'll never miss noticing you got the item again and sit there farming unnecessarily for another 15 minutes before checking. Which I may or may not have done in the past.