How do this isn't obvious - Mount your drake, making sure you have plenty of energy. Aim yourself at one of the Primal Nighytflames flying in the sky and use your drake's special ability "Whirling Surge" to knock them out of the sky. For me, this is button #2 on the drake action bar that comes up while mounted.
Quest
Maintaining the Barricade
Quest facts and objectives from the current retail game data.
The highest voted Wowhead comments for this page. They are community notes, not TheWoWDB comments.
I discovered by accident today...
If you line them up, you can drop more than one P.N. with a single whirling surge. I got two in one pass!
You can also make use of the various ballistae scattered around to shoot one. Some of them are already grounded, if your character is beefy enough and you interrupt the volley and dodge the breaths, they are soloable.
At a glance
Maintaining the Barricade is a quest for level 60-70. It rewards 1 reward item.
Quest facts
The client quest POI data records no map location for this quest, so no map is shown.
Check whether you have already completed this quest
in-game: /run print(C_QuestLog.IsQuestFlaggedCompleted(75377))
Description
It's all I can do to keep this shield up under the barrage these shadowflame drakes are putting out. Thin their ranks before we're pinned down for good.
Community notes from Wowhead · 7 comments
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Reward details
Items you receive
Item facts are the current retail client’s (ItemSparse); the specialisations for a pick-one item are the ones the Blizzard quest API lists; faction and currency text is the client’s own. Lowest listed price = the US commodity auction house now.